Crocodiles today look very similar to ones from 200 million years ago. There are also very few species alive today---just 25. Other animals such as lizards(蜥蜴)and birds have achieved a diversity of many thousands of species in the same amount of time or less.
Prehistory also saw types of crocodile we don't see today, including giants as big as dinosaurs, plant-eaters, fast runners and snake-like forms that lived in the sea. The rate of their evolution is generally slow, but occasionally they evolve more quickly because the environment has changed. In particular, their evolution speeds up when the climate is warmer, and their body size increases.
The body size of crocodiles is important because it interacts with how fast animals grow, how much food they need, how big their populations are and how likely they are to become extinct. The limited diversity of crocodiles and their apparent lack of evolution is a result of a slow evolutionary rate. It seems the crocodiles arrived at a body plan that was very efficient and perfect enough that they didn't need to change it in order to survive. This perfection could be one explanation why crocodiles survived Cretaceous period(白垩纪), in which the dinosaurs died out.
Crocodiles generally develop better in warm conditions because they cannot control their body temperature and require warmth from the environment. The climate during the age of dinosaurs was warmer than it is today, and that may explain why there were many more varieties of crocodiles than we see now. Being able to draw energy from the sun means they do not need to eat as much as a warm-blooded animal like a bird or a mammal(哺乳动物).
1. What influenced the evolution of crocodiles most?A.Their number. | B.The climate. | C.Their habits. | D.Food resources. |
A.As a result of their good appetite. |
B.Because of their perfect body type. |
C.Owing to so many dinosaurs around. |
D.Due to their limited ability to reproduce. |
A.are warm-blooded animals | B.like cold living conditions |
C.eat less than mammals | D.are fiercer than dinosaurs |
A.The history of crocodiles, |
B.Ancient animals' evolution. |
C.Residents of the Cretaceous period. |
D.The "stop-start" pattern of crocodiles' evolution. |
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【推荐1】I have seen how having an animal in your life can make things much better for all concerned. Here are some reasons.
A pet’s love never stops.
Caring for something other than yourself is emotionally healthy.
Giving and getting a little love, even if you have to say “sit down” 270 times a day, can take your mind off your troubles and help you to see what really matters.
If you have a dog, you need to take it (and yourself) on walks. Dogs are happiest when they are walking. And it’s common knowledge that taking regular walks is also good for your heart and brain health.
Just the act of petting a creature lowers your blood pressure and helps you relax.
The next time you are feeling uncomfortable, I suggest going to your local shelter and giving some love to an animal there.
Saving a life will make yours better.
Maybe you think you don’t have enough room in your heart.
You may already have a family to love, and that is totally wonderful.
A.You won’t have to take it home |
B.Some people want lovely pets |
C.Having a pet is also physically healthy |
D.If you want more love in your life, consider a pet |
E.Taking your dog for a walk can make your dog happy |
F.Some people prefer their new puppy to be from a pet store |
G.No matter what, your pet will always love you and remember you |
【推荐2】Across North America, hundreds of bird species are victims of the cowbird, which adds its own egg to other birds' nests, tricking another species into raising its offspring. One tar get, the yellow warbler(林莺), has a special call to warn egg-warming females when cowbirds are approaching the area. Now, researchers have found the females act on that warning one day later—suggesting their long-term memories might be much better than thought.
“Animals are smart in the context in which they need to be smart,” says Mark Hauber, an animal behavior researcher at the University of Illinois. who co-authored the new study. He wanted to see whether yellow warblers had the capacity to remember their own important warning call known as a seet. The birds make the call only when a cowbird is near. When yellow warbler females hear it, they go back to their nests and sit tight. But it's been unclear whether they still remember the warning in the morning.
So the study team found 27 yellow warbler nests and exposed females to either silence, or one of two sounds: a recording of a seet call or a recording of a common warning—used for predators or competition-called a chip for 10 minutes. The next morning, the researchers observed the birds for 80 minutes: 20 minutes before sunrise and 60 minutes after, when the cowbirds are at their most active.
They found the warblers left their nests less often after hearing a seet call than if they had heard no warning. The chip call didn't seem to have any impact on how often they left the nest. Sixteen hours after the experiment, the birds were still behaving as if there's a cowbird threat. It allowed us to think that these kinds of signals carried long-term meaning. Of more than 200 species targeted by cowbirds, yellow warblers are the only so far known to have developed a warning call tailored to cowbirds.
1. When hearing a seet sound, female yellow warblers usually ________.A.get ready to fight against the cowbirds | B.return to their nests to be on the lookout |
C.make a similar seet sound to warn partners | D.remember their own important warning call |
A.By giving examples. | B.By making comparisons. |
C.By listing numbers. | D.By using an expert's words. |
A.Yellow warblers don't like silent surroundings. |
B.Yellow warblers are sensitive to the chip sounds. |
C.Yellow warblers prefer the seet sounds to the chip sounds. |
D.Yellow warblers have the ability to remember certain meaningful calls. |
【推荐3】The sun is setting on a summer night. At the entrance to a deep, dark cave, a few bats fly out and begin swirling high up into the air. More and more of the small, furry creatures appear. Within a few minutes, a whole river of bats is pouring out of the cave, and they keep coming, millions and millions of them.
Sound like a scary horror movie? Believe it or not, this scene takes place every night, all summer long, at Bracken Cave in Texas, where 20 million bats fly outside to feed on insects. “It is magical,” says Jim Kennedy of Bat Conservation International in Austin Texas. “It is one of the most majestic animal movements on the planet.”
Every March or April, Mexican Free-tailed bats migrate up to 1,000 miles (1609 kilometers) from their winter home in Mexico to this cave, where they raise their young. Soon after they arrive, each mother gives birth to one pup. As many as 500 baby bats live crammed into one square foot (30.48 cubic centimeters) of space, and all those bodies create nice warm temperatures to keep them cozy and comfortable. If you’ve ever lost sight of your parents on a crowded playground, you may be wondering how mother bats recognize their children. They use their sense of smell to tell which pup is theirs when it is time for the babies to nurse.
The cave, a quiet place in winter, is full with life all summer—and not just with bat residents. Bat waste soon covers the floor, providing food for tiny organisms(生物体) like bacteria and fungi(真菌类). And then there are the bugs.
When the adult bats leave the cave at night to feed, they are helping humans. They eat tons of insects in a single night, including many pests that eat farmer’s crops. And they get rid of mosquitoes, too.
1. In the first paragraph, the author ________.A.provides some information about bats | B.stresses the danger of bats in summer |
C.advises the reader to watch bats | D.describes the movement of bats |
A.The above scene is somewhat unbelievable. |
B.People tend to feel afraid of bats. |
C.Bats are better horrible characters in films. |
D.The cave mentioned is full of adventure. |
A.no people know how many bats live in Bracken Cave. |
B.bat waste causes much harm to the human environment. |
C.a bat mother would have trouble finding her own baby. |
D.farmers will never have a good harvest without the bats. |
A.They are well protected by farmers. |
B.They travel from Mexico to America yearly |
C.They benefit from some tiny organisms. |
D.They smell better than other animals. |
A.mysterious | B.frightful |
C.enjoyable | D.crazy |
【推荐1】Scientists have solved a puzzle about modern humans, after research showed that a famous skull of a human ancestor found in South Africa is a million years older than experts thought. This discovery has changed what we know of human history.
The skull, which scientists have named “Mrs Ples”, is from an ape-like human relative from a species called Australopithecus africanus (南方古猿). It was found near Johannesburg in 1947 and, based on evidence from its surroundings, was thought to be between 2. 1 and 2. 6 million years old. This puzzled scientists, because although Mrs Ples looks like a possible early ancestor of early humans, the first true humans had already evolved by the time she apparently lived. For this reason, scientists had decided that Australopithecus afarensis, a similar species from East Africa that lived about 3.5 million years ago, was our most likely ancestor instead.
To get a more accurate age for Mrs Ples, a team led by Professor Darryl Granger of Purdue University in Indiana, US, used a new method to date the sandy rocks where the skull lay. They measured the amount of certain chemicals in rocks, which form at a steady rate when they are exposed to cosmic rays (宇宙射线) on Earth’s surface. Once rocks are buried, these chemicals stop forming and slowly disappear;the surviving amount reveals how much time has passed since the rock (or bones) were on the surface.
The new study shows that Mrs Ples and other australopithecine bones nearby are between 3.4 and 3.7 million years old. This means they lived at the same time as their East African relatives, so that either group could have given rise to modern humans. However, team member Dr Laurent Bruxelles pointed out that over millions of years, at only 2,500 miles away, these groups had plenty of time to travel and to breed with each other. In other words, the groups could quite easily have met, had children together and both been part of the history of modern humans.
1. What can we learn about Mrs Ples from the first two paragraphs?A.It is a skull found in East Africa. |
B.It is the most possible ancestor of humans. |
C.It is a million years older than scientists expected. |
D.It is proved to live between 2.1 and 2.6 million years ago. |
A.By studying the effect of cosmic rays. |
B.By calculating the forming rate of chemicals. |
C.By locating the sandy rocks where the skull lay. |
D.By measuring the surviving amount of chemicals. |
A.Modern humans came into being in East Africa. |
B.Mrs Ples travelled and had children with East African relatives. |
C.The history of modern humans might begin 3.5 million years ago. |
D.Ape-like species from Africa could have interacted with each other. |
A.Historical Puzzle Unsolved | B.Ancestor Mystery Solved |
C.Mrs Ples: The Earliest Human Being | D.Mrs Ples: A Famous Skull |
【推荐2】A study shows that nearly ninety percent of teens report that they have tried alcohol.That’s an increase of 23 percent in just four years!
Each year,1.1 billion cans of beer are drunk by students aged 15-19 years old.Beer is the most common alcoholic drink among teens—81 percent of the drinkers had tried it.Beer is followed by wine with 63 percent,hard liquor(烈酒) with 53 percent and wine coolers with 35 percent.
When the young people are asked why they drank,the most common answer is that drinking is “something to do”.If a teen’s parents drink alcohol,the teenager is more likely to start drinking at an early age.Also,teens see all of their friends drinking alcohol so they think it is the must-to-do thing.Peer pressure is probably the hardest thing teens have to deal with.What’s more,teens often drink alcohol because it makes them feel older and cooler.
Researchers asked 56,000 students about their drinking habits and grades,to see how drinking might affect their grades in school.The results seem to be clear.Students who got a C level or lower tend to use three times as much alcohol as those who got B’s or A’s.
Alcohol use can be deadly.About 8,100 young people are killed per year in alcohol-related accidents.Eight young people die per day as a result of a drunk-driving accident.Between 50 and 65 percent of all teen suicides(自杀) occur after the young people drink.
So you see,drinking alcohol doesn’t always end up with a good time.The next time you try to push someone to drink or someone tries to push you to drink,please remember this.One drink can set the habit for life.Why not throw it away?
1. Which of the following reasons for teens’ drinking alcohol is not mentioned?A.They think it is cool to drink alcohol. |
B.Their parents set a bad example to them. |
C.Alcohol can make them happier. |
D.Peer pressure plays an important role. |
A.Drinking alcohol makes students stupid. |
B.Good students never try alcohol. |
C.Drinking habits have something to do with IQ. |
D.Students with poor grades tend to use more alcohol. |
A.To show the bad effect of drinking alcohol. |
B.To show how many teenagers drink alcohol. |
C.To tell teenagers not to try alcohol. |
D.To tell the reasons why teenagers drink alcohol. |
【推荐3】If you have a chance to talk with a historical figure, who would you like it to be? What would you like to know about the past or share from today? China in the Classics, a new TV show based on Chinese classics started by China Central Television (CCTV) in February, is exploring such possibilities.
In the first episode, the host of the show, Sa Beining, meets ancient Confucian scholar Fu Sheng, who interpreted Shangshu — The Book of Documents. Regarded as one of the five classics of ancient Chinese Confucianism masterpieces, the book records many firsts in the country. Even the expression zhongguo (China) is used there first.
The episode ends with the host bringing Fu to today’s modern society, where the scholar is happy to find children learning the same things he had learned in his childhood. It increased the rating of the series with viewers giving it 9 out of 10 on Douban, a film and TV show reviewing website popular among young people.
The success of China in the Classics doesn’t surprise Shen Haixiong, head of the China Media Group. Shen said in an article in the journal Qiushi, “We are happy to see the program is popular among the public, but we are prouder to find that innovative interpretation of Chinese classics is arousing young people’s interest in Chinese culture.”
Therefore, TV channels have been making bold attempts in recent years to attract today’s younger generations. The Nation’s Greatest Treasures, CCTV’s cultural show in 2017, showcased China’s history and culture through antiques in the top-class museums, and fired up the audience. The treasures include the 3,300-year-old Yinxu Ruins in Henan Province and the 1,300-year-old Potala Palace in Lhasa, Tibet Autonomous Region.
CCTV should make a variety of programs showcasing classics and cultural traditions to appeal to the young generation’s aesthetics, said Zhou, a professor at the School of Arts and Communication, Beijing Normal University.
1. Why is The Book of Documents mentioned in paragraph 2?A.To introduce a historical figure. | B.To inform us of the host. |
C.To show the popularity of the show. | D.To describe a new TV show. |
A.Surprised. | B.Confused. | C.Satisfied. | D.Neutral. |
A.Chinese treasures. | B.Another TV programme. |
C.Yinxu Ruins in Henan. | D.Young Chinese audience. |
A.CCTV Produces Some Famous TV shows | B.TV Shows on Chinese Classics Grow Popular |
C.Scholars Focus Attention on Chinese Classics | D.China in the Classics Fires up the Audience |
It seemed that Katie had been running up sizable charges in the lunchroom. Her parents explained that Katie brought a great homemade lunch each day, and there was no reason for her to buy school lunch. They assumed a sit-down with Katie would solve the problem, but failed. So they asked me to help them get to the bottom of this situation.
So the next day, I asked Katie to my office. "Why are you charging lunches, Katie? What happened to your homemade lunch?" I asked. "I lose it," she responded. I leaned back in my chair and said, "I don't believe you, Katie. " She didn't care. "Is someone stealing your lunch, Katie?" I took a new track. "No. I just lose it," she said. Well, there was nothing else I could do.
The problem was still unsolved the next week when I noticed a boy who was new to the school sitting alone at a lunch table. He always looked sad. I thought I would go and sit with him for a while. As I walked towards him, I noticed the lunch bag on the table. The name on the bag said "Katie".
Now I understood and I talked to Katie. It seemed that the new boy never brought a lunch, and he wouldn't go to the lunch line for a free lunch. He had told Katie his secret and asked her not to tell anyone that his parents wanted him to get a free lunch at school. Katie asked me not to tell her parents, but I drove to her house that evening after I was sure that she was in bed. I had never seen parents so proud of their child. Katie didn't care that her parents and teacher were disappointed in her. But she cared about a little boy who was hungry and scared.
Katie still buys lunch every day at school. And every day, as she heads out of the door, her mom hands her a delicious homemade lunch.
1. What did the author think of Katie?
A.She performed well at school. |
B.She was a girl filled with love. |
C.She often made trouble at school. |
D.She used to be a discipline problem. |
A.She lost her homemade lunch. |
B.She had her homemade lunch stolen. |
C.She didn't like the taste of her homemade lunch. |
D.She gave her homemade lunch to a hungry boy. |
A.They were very angry. | B.They were proud of Katie. |
C.They were disappointed. | D.They were rather upset. |
A.Katie was informed that her parents had known her secret. |
B.Katie told the author the truth of her lunch during their first talk. |
C.Katie's secret of lunch was discovered by the author by accident. |
D.Katie stopped buying lunch at school after her secret was discovered. |
【推荐2】We are admitted into the full-time school called “life”. Every day in this school, we have opportunities to learn new lessons. No matter whether we like these lessons or not, we have to take them, because they are our lessons.
Why are we here in this world? What is the purpose of life? Humans have tried to discover the meaning of life for thousands of years, but failed to get the answer, because the meaning of life is different from person to person.
Each one of us has his or her special purpose and path, unique and different. As we travel on our life path, we will learn many great lessons in order to fulfill that purpose. Learning our lessons well is the key to discovering the real meaning of our own life.
As we travel through our lifetime, we may be taught hard lessons that others don’t have to face, while others spend years struggling with problems we don’t need to deal with. We may never know why we love English, not physics, which indicates that our path is different. While traveling on our own path, sometimes alone, we should, first of all, take a basic lesson in openness.
Openness means being receptive. Life will present us with so many lessons, none of which are useful to us unless we can recognize them and are open to their values. These lessons are not easy to learn, but we should regard them as gifts. But how can we recognize these lessons? It is a matter of what “glasses” we are wearing at the time. It is not difficult to spot them if we take them as opportunities. So when we are not open to learning our lessons, failing a weekly English test might be like a disaster rather than an opportunity to us. Of course, the hard lessons may not be fun, but they can actually be the biggest gifts we receive from life.
1. The author may be in favor of the viewpoint that all men are born _______.A.equal | B.challenging |
C.opportunistic | D.different |
A.we choose our own path in life |
B.people have to face the same lessons |
C.we should travel on the same path |
D.we should enjoy the meaning of life |
A.angles of view | B.experiences from life |
C.common value system | D.willingness to face challenge |
A.Life in School | B.Gifts from Life |
C.Life School and Students | D.Life as School |
A.People always learn the same lessons. |
B.Life is a lesson as one in the classroom. |
C.Hard lessons are fun. |
D.People should be open to the life. |
【推荐3】Growing up in Taiwan as the daughter of a calligrapher(书法家),one of my most treasured memories was my mother showing me the beauty, the shape and the form of Chinese characters. Ever since then, I was attracted by this amazing language.
But to an outsider, it seems to be as impenetrable as the Great Wall of China. Over the past few years, I've been wondering whether I can break down this wall, so that anyone who wants to understand and appreciate the beauty of this complex language could do so. I started thinking about how a new, fast method of learning Chinese might be useful.
At the age of five, 1 started to learn how to draw every single stroke(笔划)for each character in the correct order. I learned new characters every day during the next fifteen years. You only need 1 ,000 to understand the basic communication. The top 200 will allow you to read 40 percent of basic literature-enough to read road signs, restaurant menus, to understand the basic idea of the web pages or the newspapers. Today I'm going to start with 8 characters to show you how the method works.
Open your mouth as wide as possible until it's square. You get a mouth---口. This is a person going for a walk with two legs. Person---人.The shape of the fire is a person with two arms on both sides, as if she was yelling crazily, u Help! I'm on fire!" ---火. This is a tree---木.This is a mountain--山.The sun---日. The moon---月.The symbol of the door looks like a pair of car doors---门.These eight characters are the building blocks for you to create lots more characters.
1. What does the underlined word " impenetrable " in Paragraph 2 probably mean?A.Available to learn about. | B.Worthwhile to access. |
C.Difficult to get across. | D.Important to understand. |
A.To prove her ability to learn. | B.To help her mother with her career. |
C.To get better grades in exams. | D.To enable more people to enjoy Chinese. |
A.read restaurant menus | B.understand newspapers well |
C.communicate with natives | D.enjoy basic literature |
A.How the eight characters build other characters. |
B.What other meanings the eight characters have. |
C.Where the eight characters can be used in daily life. |
D.Why the eight Chinese characters are formed in this way. |
【推荐1】Many studies have shown that getting more exercise is good for our brain. But can it happen the other way around? Can working on elevating mood help us to exercise more? The answer to this question is positive.
A study conducted by Emmons and McCullough formed three groups. One group was told to journal once a week and list 5 things that happened during the week that they were grateful for. Another group was told to journal once a week and list 5 things that had been a problem for them. A third group was told to journal once a week about 5 things that affected them, but were not given instruction as to whether they should be positive or negative.
After 10 weeks, the group that had focused on gratitude ended up 25%happier than the other two groups. Astonishingly, the gratitude group also exercised almost 1. 5 hours longer per week than the other groups.
Daniel Amen, in his book, Change Your Brain, Change Your Life, notes that emotional tagging of events is critical to survival. If we tag an event negatively, it can cause an avoidance response. If we tag an event positively, it can drive us to action.
Apparently, our survival is more dependent on being able to perceive a threat to our being, rather than notice that something good is happening. Focusing on the negative can cause us to lose sight of the big picture.
Jonathan Haidt, in his book The Happiness Hypothesis, explains that once we take a negative stance, we look for evidence that supports it. If we find some evidence-enough so that our position makes sense-we stop thinking. When this happens, often people will not start a change of thinking for themselves.
Jonathan Haidt notes that gratitude increases one's sense of control over a situation. A sense of control can bring about an increase in action, energy, and happiness. This can translate into sustained optimism, the ability to consider new options, set new goals, and, yes, even exercise more.
1. What were the three groups in Emmons and McCullough's study asked to do?A.Write five things down | B.Take exercise regularly |
C.Focus on being thankful | D.Express their true feelings |
A.It protects us from negative emotions. | B.It allows us to think in a positive way. |
C.It tells us how to manage our feelings. | D.It determines how we respond to events. |
A.It helps us to get rid of unrealistic goals. | B.We feel situations are more controllable. |
C.It is a great way to stop thinking too much. | D.We will regard everything around wonderful. |
A.Changing Thinking Model Is Necessary | B.Staying Optimistic Brings Active Thinking |
C.Working Out Regularly Is Good for Our Brain | D.Being Grateful Motivates Us to Exercise More |
【推荐2】Radio proved its importance during World War II ( 1939 — 45 ) with almost immediate coverage of events. Between 1941 and 1945 , Americans tuned in to listen to breaking news from Europe, hearing about major battles and the bombing of Pearl Harbor in Hawaii just moments after the actual events. News reporters such as Edward R. Murrow (1908 — 1965) and William Shirer (1904 — 1993) offered insightful (有深刻见解的)commentary and straight, hard news. Their example would influence the news anchors (新闻广播员)on the new media — television, commonly called TV 一 for decades. Radio's golden age ended with the war.
The 1940s were the true beginning of the TV era. Although sets had been available as early as the late 1930s, the widespread distribution and sale of TV sets did not really take off until after the war. Broadcasting stations ignored many of their radio stations and poured money into TV after the war. Soon many radio dramas, variety shows, and comedy programs were available on TV and radio was left with mostly music. For children, new shows like Kukla, Fran, and Ollie and The Howdy Doody Show offered laughs. One of the most popular early TV programs was a variety show called Texaco Star Theater, starring comedian Milton Berle (1908 —- 2002) , that started in 1948.
As the decade continued, more and more people bought TV sets. Instead of circling around their radios, people would settle in front of their TVs for news and entertainment. As TV became more popular, the government set up regulations to ensure competition between stations, channels (频道),and programs. The 1950s would see the new medium change dramatically(明显的)with the introduction of color and other technological advances.
1. Which of the following is right according to the passage?A.TV played an important role in World War IL |
B.Radio disappeared with the end of World War IL |
C.R. Murrow and William Shirer are excellent news reporters. |
D.Americans picked up the bombing of Pearl Harbor in Hawaii just before the actual event. |
A.Copy. | B.Remove. | C.Be popular. | D.Leave. |
A.TVs has taken the place of radios. |
B.The government made rules to limit the development of TVs. |
C.During the 1950s TV changed better with the introduction of new energy technology. |
D.As time went on, less and less people prefer radios. |
A.TV and Radio in the 1940s |
B.Why Do People Prefer TVs |
C.The History of Radio and TV |
D.The Importance of TV and Radio |
【推荐3】Many Westerners have the idea that everyone in China knows how to do kung fu. This is, of course, a silly belief. But it is true that kung fu is a big part of Chinese culture.
Like most people from the West, I was first introduced to kung fu through Hong Kong action films. Stars like Bruce Lee and Jackie Chan made kung fu popular in the Western world. The flashy and impressive performances they gave in films like Rumble in the Bronx and Enter the Dragon made them household names in the U.S. and elsewhere.
However, my own personal interest in kung fu was actually inspired by a hip hop group. Wu-Tang Clan, founded in the early 1990s in New York City, is one of the most influential hip hop groups in history.
In their songs, they sometimes mention philosophical concepts that come from Wudang quan—a classic Chinese martial art from which they take their name—and Shaolin Temple. I was just a teenager when I first started listening to Wu-Tang Clan—little did I know that I would actually end up living in China later in my life!
I myself do not practice kung fu. However, the concepts behind it are quite interesting to me. There is a Bruce Lee quote that I often think of when I'm struggling with challenges in life. “Be formless, shapeless, like water,” he once said. By this, he meant that you should be ready to adapt to and change your attitudes or beliefs when you face difficulties. I think this is a good way to deal with life.
1. What does “a silly belief” in Paragraph 1 refer to?A.All Chinese people can do kung fu. |
B.China is most famous for its kung fu. |
C.Kung fu is a big part of Chinese culture. |
D.Many Westerners admire kung fu. |
A.Hong Kong action movies. | B.A TV program about kung fu. |
C.Kung fu stars in Hollywood. | D.A US hip hop group. |
A.They have Chinese culture in their songs. |
B.They taught the author how to do Wudang quan. |
C.They performed Chinese martial arts in the U.S. |
D.They showed the author the way to live in China. |
A.The author was sorry that he couldn't do kung fu. |
B.The concepts of kung fu change over time. |
C.The spirit of kung fu helps the author overcome difficulties. |
D.Bruce Lee was the most popular martial arts master. |