1 . The situation of the world’s plants is not good. One fifth of the kinds of plants are in danger of disappearing, according to a report.
“Plants are very vital to human beings,” said Kathy Willis, who led the new report. “Plants provide us with everything—food, fuel, and medicine, and they are very important for our climate controlling. Without plants we would not be here.”
The good news is that deforestation rates around the world have dropped largely since the 1950s. However, this report on the health of plants around the world shows that there is much more to be done.
The report predicts that there are now 390,900 kinds of plants. And about 21 percent of those plants are in danger of disappearing. “The good side is that we’re still discovering lots of new plants, about 2,000 each year,” said Dr. Willis. “The bad side is that we’ve seen a huge change in land cover, mainly caused by cultural activity, with a little bit of climate change in there as well.”
Human activity has a great effect on the danger of plants disappearing. As humans cut down forests to make room for agriculture, towns and cities, biodiversity is lost. This could not only affect our own food supply directly, but also affect the food web.
1. What does the underlined word “vital” in Paragraph 2 probably mean?| A．Useless. | B．Friendly. | C．Equal. | D．Important. |
| A．New plants are more than ever before. | B．About half the plants will disappear soon. |
| C．Many new plants are found every year. | D．Plants mustn’t be used to produce medicine. |
| A．We have made little progress. | B．There is a long way for us to go. |
| C．We have achieved our goal. | D．There will be nothing we can do. |
| A．Biodiversity Being Lost | B．Human Social Activity |
| C．Environment Protection | D．Nature Climate Change |
2 . Gardening is popular in many parts of the world. This outdoor activity gives us beautiful plants, pleasant smelling flowers and fresh fruits and vegetables. And it also does a lot of good to our health.
Gardening connects people. When you are gardening, you are outdoors. So it is a perfect chance to meet and spend time with your neighbors. Most people love to talk about their hobbies, and gardeners are no different. They usually enjoy showing people what they are growing. And most of them enjoy sharing advice and stories about their gardens almost as much as sharing flowers and vegetables from their gardens.
Gardening is a great activity for children. It gets them outdoors and off computers, televisions and cell phones. Gardening is also a great teacher. It can teach a child about where food comes from and healthy eating. It also helps them to understand that the natural resources (资源) are not inexhaustible and the importance of using them carefully.
Then, when you garden, you must move around. All the different movements needed for gardening, like bending and lifting, work small muscles (肌肉) in the body. And you can easily get good exercise when you are digging holes or pulling grass.
In a study, researches looked at more than 2,800 people over the age of 60. They studied their life habits, activities and health over a 16-year period. They found that gardening could lower the risk of future dementia (痴呆) by 36%. Gardening requires people to do many repeated actions, such as picking off dying flowers. These actions have a calming influence on the brain. The brain is still active but not in the same way when we use computers.
You'll feel wonderful when what you grow in a garden looks, smells, feels and tastes good.
1. What can be inferred from Paragraph 2?| A．Gardeners don't feel lonely. | B．Gardeners are fond of sharing. |
| C．Gardeners have many hobbies. | D．Gardeners care about the environment. |
| A．Useless. | B．Special. | C．Endless. | D．Cheap. |
| A．To tell us gardening is popular with the old. |
| B．To tell us gardening is good for health. |
| C．To tell us gardening can be a tiring activity. |
| D．To tell us gardening is better than playing computers. |
| A．To show how to garden. | B．To encourage us to garden. |
| C．To show gardening is popular. | D．To encourage us to do outdoor activities. |
3 . According to a recent study in the Journal of Consumer Research, both the size and consumption habits of our eating companions can influence our food intake. And contrary to existing research that says you should avoid eating with heavier people who order large portions(份), it's the beanpoles with big appetites you really need to avoid.
To test the effect of social influence on eating habits, the researchers conducted two experiments. In the first, 95 undergraduate women were individually invited into a lab to ostensibly(表面上)participate in a study about movie viewership. Before the film began, each woman was asked to help herself to a snack. An actor hired by the researchers grabbed her food first. In her natural state, the actor weighed 105 pounds. But in half the cases she wore a specially designed fat suit which increased her weight to 180 pounds.
Both the fat and thin versions of the actor took a large amount of food. The participants followed suit, taking more food than they normally would have. However, they took significantly more when the actor was thin.
For the second test, in one case the thin actor took two pieces of candy from the snack bowls. In the other case, she took 30 pieces. The results were similar to the first test: the participants followed suit but took significantly more candy when the thin actor took 30 pieces.
The tests show that the social environment is extremely influential when we're making decisions. If this fellow participant is going to eat more, so will I. Call it the “I’ll have what she's having” effect. However, we'll adjust the influence. If an overweight person is having a large portion, I'll hold back a bit because I see the results of his eating habits. But if a thin person eats a lot, I'll follow suit. If he can eat much and keep slim, why can't I?
1. What is the recent study mainly about?| A．Food safety. | B．Movie viewership. |
| C．Consumer demand. | D．Eating behavior. |
| A．Big eaters. | B．Overweight persons. |
| C．Picky eaters. | D．Tall thin persons. |
| A．To see how she would affect the participants. |
| B．To test if the participants could recognize her. |
| C．To find out what she would do in the two tests. |
| D．To study why she could keep her weight down. |
| A．How hungry we are. | B．How slim we want to be. |
| C．How we perceive others. | D．How we feel about the food. |
4 . Nature has provided us with many kinds of resources. It is like a great magician(魔术师), creating wonders on Earth. One of them is the Amazon rainforest, the world’s largest and home to millions of plants and animals. Nicknamed”the lungs of our planet”, it produces about one-fifth of Earth’s oxygen. However, this wonderful natural wonder is now in danger.
Thousands of fires have broken out in Brazil, endangering much of the rainforest. These flames have lasted several weeks and are believed to be the”most intense”in almost ten years, according to BBC News.
The Amazon has seen a large number of fires in 2019. Between January and August, there were over 74,000 fires – the highest number since 2013, the BBC reported.
Forest fires are common during the dry season, which runs from July to October. They are usually caused by natural events like lightning. However, most of the fires this year are believed to be caused by farmers, who use fire as a traditional part of tropical agriculture(农业) to clean land, reported CNN.
“It’s the best time to burn because the plants are dry. Farmers wait for the dry season and they start burning and clearing the areas so that their cattle can have grass,”wrote CNN meteorologist Haley Brink.
The disaster has raised concern(关注) around the world. The Amazon rainforest is important for preventing climate change, said the BBC, absorbing millions of tons of carbon annually. When trees are cut down or burned, the rainforest’s ability to absorb carbon is reduced.
Brazilian climate expert Carlos Nobre told Reuters he’s worried. If more than 20 percent of the ecosystem is destroyed, the Amazon rainforest could reach a”tipping point (临界点)”, where the thick jungle will turn into a tropical savannah(大草原).
Nobre warned that it is not far off, with between 15 and 17 percent of the rainforest having already been destroyed.
The Brazilian government has sent soldiers to fight the fires. Many people have offered their support and called for recovery efforts. For example, Tim Cook, CEO of Apple, said he wanted to donate money and US Actor Leonardo DiCaprio’s environmental charity, Earth Alliance, created a donation fund to help deal with the disaster.
The public are also encouraged to donate to charities concerned with rainforest protection. “Every little bit helps in a bad situation like this,”commented Gizmodo.
1. The underlined word”intense”probably means ______.| A．natural | B．terrible | C．common | D．unexpected |
| A．Lightning. | B．Hot weather. |
| C．Agricultural activities. | D．Garbage left by tourists. |
| A．Global temperatures will rise. |
| B．The Amazon rainforest is close to disappearing. |
| C．Animals in the Amazon rainforest are under threat. |
| D．It will take tens of years for the Amazon rainforest to recover. |
| A．Efforts made to save the Amazon rainforest. |
| B．The possible future of the Amazon rainforest. |
| C．What the Brazilian government has done to fight fires. |
| D．Celebrities(名人) who care about rainforest protection. |
5 . Kyle Cassidy and three other members of the Annenberg Running Group were stretching on the grounds of the University of Pennsylvania, waiting for a few latecomers. The Penn colleagues and other community members meet three days a week for a roughly 30-minute jog and an occasional lecture. That's right― during some runs, one of them delivers a talk. Topics range from the brain to Bitcoin.
But on this day last January, it would not be their normal run. The first clue that something was off was the man who sprinted past them. "Running at an amazing pace," Cassidy told Runner's World admiringly. Cassidy discovered why the sprinter was so fleet of foot when another man ran by, yelling, “Help! He took my phone and laptop!"
At that, the group did what running clubs do: They ran, trailing the suspect down the streets of Philadelphia until he ducked into a construction site. The runners split up. Cassidy ran around to the far side of the site to cut the thief off while the others wandered the neighborhood hoping he had dumped the loot （赃物）in a backyard.
No luck. So they decided to ask residents whether they'd seen the guy. When they knocked on the door of one row house, they were in for a surprise. Unknown to them, he had already emerged from the construction site—and was hiding behind a bush by that very house. As the owner opened the door, the suspect darted out from behind the bush ... and right into the arms of campus police, who'd joined the chase shortly behind the runners.
The members of this running group are not hard-core athletes. But they do understand the benefit of a little exercise. ''Running is typically a useless sport where you turn fat cells into heat," Cassidy told The Philadelphia Inquirer. "But occasionally it can be useful, and here was one of those opportunities."
1. Why do the group members gather together?| A．To do some stretching. | B．To have a regular run. |
| C．To deliver a lecture. | D．To cover some topics. |
| A．Dashed. | B．Pushed. |
| C．Jumped. | D．Escaped. |
| A．the assistance of the runners | B．the owner of the row house |
| C．the campus police on patrol | D．the joint efforts of the people |
| A．Athletic and generous. | B．Courageous and ambitious. |
| C．Helpful and humorous. | D．Thoughtful and demanding. |
6 . In modern society there is a great deal of argument about competition. Some value it highly, believing that it is responsible for social progress and prosperity. Others say that competition is bad; that it sets one person against another; that it leads to unfriendly relationship between people.
I have taught many children who held the belief that their selfworth relied on how well they performed at tennis and other skills. For them, playing well and winning are often lifeanddeath affairs. In their singleminded pursuit of success, the development of many other human qualities is sadly forgotten.
However, while some seem to be lost in the desire to succeed, others take an opposite attitude. In a culture which values only the winner and pays no attention to the ordinary players, they strongly blame competition. Among the most vocal are youngsters who have suffered under competitive pressures from their parents or society. Teaching these young people, I often observe in them a desire to fail. They seem to seek failure by not trying to win or achieve success. By not trying, they always have an excuse: “I may have lost, but it doesn't matter because I really didn't try.” What is not usually admitted by themselves is the belief that if they had really tried and lost, that would mean a lot. Such a loss would be a measure of their worth. Clearly, this belief is the same as that of the true competitors who try to prove themselves. Both are based on the mistaken belief that one's selfrespect relies on how well one performs in comparison with others. Both are afraid of not being valued. Only as this basic and often troublesome fear begins to dissolve can we discover a new meaning in competition.
1. What does this passage mainly talk about?| A．Competition helps to set up selfrespect. |
| B．Opinions about competition are different among people. |
| C．Competition is harmful to personal quality development. |
| D．Failures are necessary experiences in competition. |
| A．those who try their best to win |
| B．those who value competition most highly |
| C．those who are against competition most strongly |
| D．those who rely on others most for success |
| A．One's worth lies in his performance compared with others'. |
| B．One's success in competition needs great efforts. |
| C．One's achievement is determined by his particular skills. |
| D．One's success is based on how hard he has tried. |
| A．Every effort should be paid back. |
| B．Fear of failure should be removed in competition. |
| C．Winning should be a lifeanddeath matter. |
| D．Competition should be encouraged. |
7 . We don’t know when and where the next earthquake will hit. But we do know the importance of safety and preparation. The only way to be ready for the unexpected is to prepare ahead of time. It’s especially important if you live in earthquake zones. So here are some important steps to build your own Earthquake Action Plan.
1. Talk to your friends and families and decide on a place to meet if you’re separated after an earthquake.
2. Make an emergency（紧急情况）communication plan in case cell towers or phone lines are down. You can also ask relatives or friends outside your area to be your contacts.
3. Locate a safe place in every room of your house and discuss with your families the safest places to be during an earthquake. Remember, if you’re：
a. Inside, get under something heavy like a study table or against an inside wall and cover your head.
b. Outside, stay away from buildings and get out into the open.
c. In your car, stop and stay in your seat. If you’re stopped near a building or under an overpass（天桥），try to safely move away from it.
4. Store first-aid kits（急救箱）anywhere you spend a lot of time（house, car, workplace, etc. ）.
5. Pack plenty of batteries, flashlights, and bottles of water to prepare for power outages and water shortages.
6. Review your home’s important systems（electrical, gas, water, etc. ）and know how to operate them or shut them off in an emergency.
Although they’re somewhat unusual, earthquakes are incredibly terrible, overwhelming, and unpredictable forces of nature. But with some knowledge and preparation, we can mitigate risks and do the best we can to keep ourselves and our families safe.
1. Paragraph 1 mainly shows it’s very important to ______.| A．know the use of an Earthquake Action Plan |
| B．know when an earthquake will come |
| C．stay away from earthquake zones |
| D．prepare for an earthquake |
| A．that are very safe |
| B．where you often stay |
| C．that are under something heavy |
| D．that your friends and families know |
| A．deciding where to meet with others after an earthquake |
| B．making sure that you have contacts out your area |
| C．practicing how to escape with your families |
| D．finding safe places in your house |
| A．Lower. | B．Avoid. |
| C．Stop. | D．Treat |
8 . An earthquake is one of the most common natural disasters. It may cause great damage. So it is wise to learn some simple safety tips to protect yourself or your family members.
Fragile items, like those made of glass are easily broken and should usually be placed on a lower surface, near the ground instead of placing them on cupboards higher up. Never place them near your bed, sofas and other furniture where you would be sitting or lying down. When there is a strong movement, these pieces will fall on the floor directly and not on you.
There is a strong chance of short circuits (短路) and fire breakouts during an earthquake. Make sure you turn off electrical connections and gas immediately when an earthquake happens.
During an earthquake, lie beneath an object that is not easily damaged. Do not go near objects that could directly fall on you. Never use the elevator to go down. Stay inside until the shaking stops and it is safe to go outside. Research has shown that most injuries happen when people inside buildings try to go out. Use the stairs at all times.
If you are outdoors, do not take shelter under a tree, streetlights, electric poles or tall buildings. If you are driving, stop your car and stay in a safe place. Do not park your car under a tree or any tall object.
If trapped in debris (瓦砾堆), cover your mouth with a handkerchief or clothing. Tap on a pipe or wall so rescuers can find you. Use a whistle (哨子) if one is available. Never shout for help. Shouting can cause you to breathe in dangerous amounts of dust. Do not light a match because you may burn yourself. Do not move about or kick up dust.
1. The purpose of the passage is to tell readers _____.| A．the damage caused by earthquakes |
| B．the rescue work after earthquakes |
| C．what to do about earthquakes |
| D．how to prevent earthquakes |
| A．easily broken | B．easily found | C．expensive | D．heavy |
| A．go out the building at once |
| B．turn off electricity and gas immediately |
| C．take shelter under a tree |
| D．drive to a safe place quickly |
| A．Cover their mouth with a handkerchief. |
| B．Tap on a pipe or wall for help. |
| C．Use a whistle for help. |
| D．Light a match for help. |
Proudly reading my words, I glanced around the room, only to find my classmates bearing big smiles on their faces and tears in their eyes. Confused, I glanced toward my stone-faced teacher. Having no choice, I slowly raised the report I had slaved over, hoping to hide myself. “What could be causing everyone to act this way?”
Quickly, I flashed back to the day Miss Lancelot gave me the task. This was the first real task I received in my new school. It seemed simple: go on the Internet and find information about a man named George Washington. Since my idea of history came from an ancient teacher in my home country, I had never heard of that name before. As I searched the name of this fellow, it became evident that there were two people bearing the same name who looked completely different! One invented hundreds of uses for peanuts, while the other led some sort of army across America. I stared at the screen, wondering which one my teacher meant. I called my grandfather for a golden piece of advice; flip (掷) a coin. Heads—the commander, and tails—the peanuts guy. Ah! Tails, my report would be about the great man who invented peanut butter, George Washington Carver.
Weeks later, standing before this unfriendly mass, I was totally lost. Oh well, I lowered the paper and sat down at my desk, burning to find out what I had done wrong. As a classmate began his report, it all became clear, “My report is on George Washington, the man who started the American Revolution.” The whole world became quite! How could I know that she meant that George Washington?
Obviously, my grade was awful. Heartbroken but fearless, I decided to turn this around. I talked to Miss Lancelot, but she insisted: No re-dos; no new grade. I felt that the punishment was not justified, and I believed I deserved a second chance. Consequently, I threw myself heartily into my work for the rest of the school year. Ten months later, that chance unfolded as I found myself sitting in the headmaster’s office with my grandfather, now having an entirely different conversation. I smiled and flashed back to the embarrassing moment at the beginning of the year as the headmaster informed me of my option to skip the sixth grade. Justice is sweet!
1. What did the author’s classmates think about his report?
| A．Controversial. | B．Ridiculous. |
| C．Boring. | D．Puzzling. |
| A．He was unfamiliar with American history. |
| B．He followed the advice and flipped a coin. |
| C．He forgot his teacher’s instruction. |
| D．He was new at the school. |
| A．annoyed | B．ashamed |
| C．ready | D．eager |
| A．by redoing his task |
| B．through his own efforts |
| C．with the help of his grandfather |
| D．under the guidance of his headmaster |
10 . Far from the land of Antarctica, a huge shelf of ice meets the ocean. At the underside of the shelf there lives a small fish, the Antarctic cod.
For forty years scientists have been curious about that fish. How does it live where most fish would freeze to death? It must have some secret. The Antarctic is not a comfortable place to work and research has been slow. Now it seems we have an answer.
Research was begun by cutting holes in the ice and catching the fish. Scientists studied the fish’s blood and measured its freezing point.
The fish were taken from seawater that had a temperature of -1.88℃ and many tiny pieces of ice floating in it. The blood of the fish did not begin to freeze until its temperature was lowered to -2.05℃. That small difference is enough for the fish to live at the freezing temperature of the ice-salt mixture.
The scientists’ next research job was clear: Find out what in the fish’s blood kept it from freezing. Their search led to some really strange thing made up of a protein never before seen in the blood of a fish. When it was removed, the blood froze at seawater temperature. When it was put back, the blood again had its antifreeze quality and a lowered freezing point.
Study showed that it is an unusual kind of protein. It has many small sugar molecules held in special positions within each big protein molecule. Because of its sugar content, it is called a glycoprotein. So it has come to be called the antifreeze fish glycoprotein. Or AFGP.
1. What is the text mainly about?| A．The terrible conditions in the Antarctic. |
| B．A special fish living in freezing waters. |
| C．The ice shelf around Antarctica. |
| D．Protection of the Antarctic cod. |
| A．The seawater has a temperature of -1.88℃. |
| B．It loves to live in the ice-salt mixture. |
| C．A special protein keeps it from freezing. |
| D．Its blood has a temperature lower than -2.05℃. |
| A．A type of ice-salt mixture. | B．A newly found protein. |
| C．Fish blood. | D．Sugar molecule. |
| A．sugar | B．ice |
| C．blood | D．molecule |
