Do you know why different animals or insects have their own special colors? Colors in them seem to be used mainly to protect themselves.
Some birds like eating locusts (蝗虫), but birds cannot easily catch them. Why? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves during the day and appear only at night.
If you study the animal life, you’ll find the main use of color is to protect themselves. Bears, lions and other animals move quietly through forests. They cannot be easily seen by hunters. This is because they have the colors much like the trees.
Have you ever found an even more strange act? A kind of fish in the sea can release a kind of black liquid (液体) when it faces danger. While the liquid spreads over, its enemies can’t find it. And it immediately swims away. So it has lived up to now though it is not strong at all.
1. Locusts change their color to match the color of crops to avoid being eaten by birds.2. Insects that look different from plants are active both during the day and at night.
3. Animals that have colors different from trees would be more easily noticed by hunters.
4. Some fish release a black liquid to kill their enemies when they are in danger.
5. The text mainly discusses how animals and insects use colors to protect themselves.
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Dogs are our good friends. They started living with man about 10,000 years ago. And in 1957, a dog was the first animal in the world to travel in space.
People usually think that dogs can’t see colours. It’s not true. Dogs can see colours. They know the difference between blue, yellow and grey, but they don’t see red and green.
About cats
In ancient Egypt (古埃及), people thought cats were Pharaoh’s (法老). If there was a fire, people should save cats first, and then man.
In Belgium (比利时) in 1879, people once used 37 cats to carry letters. But the cats didn’t work well in a team. So it didn’t last long.
Cats hear better than dogs and people. They have 32 muscles (肌肉) in each ear, so they can turn their ears very quickly to catch sounds.
A study shows cats have better memories than dogs. It says a dog can remember something for no more than five minutes, but a cat can remember something for 16 hours.
1. Dogs began to live with man ________.| A．about 10,000 years ago | B．about 1,957 years ago |
| C．in 1957 | D．in 1879 |
| A．blue and grey | B．blue and yellow |
| C．yellow and grey | D．red and green |
| A．people liked cats | B．cats were Pharaoh’s |
| C．cats were expensive | D．cats caught mice for people |
| A．were lazy | B．couldn’t read letters |
| C．lived a short life | D．were poor at teamwork |
【推荐2】Lions are opportunists. They prefer to eat without having to do too much work. When resting in the shade, they are also watching the sky to see what is flying by, and even in the heat of the day they will suddenly start up and run a mile across the plains to find out what is going on. If another animal has made a kill, they will drive it off and take the kill for themselves. A grown lion can easily eat 60 pounds of meat at a single feeding. Often they eat until it seems painful for them to lie down.
The lionesses (母狮) , being thinner and faster, are better hunters than the males. But the males don’t mind. After the kill they move in and take the test share.
Most kills are made at night or just before daybreak. We have seen many, many daylight attempts but only ten kills. Roughly, it’s about twenty daytime attempts for one kill.
When lions are hiding for an attack by a water hole, they wait patiently and can charge at any second. The kill is the exciting moment in the day-to-day life of the lion, since these great animals spend most of their time, about 20 hours a day, sleeping and resting.
Lions are social cats, and when they are having a rest, they love to touch each other. After drinking at a water hole, a lioness rests her head on another’s back. When walking, young lions often touch faces with older ones, an act of close ties among members of the group.
1. By describing lions as “opportunists” in the first paragraph, the author means to say that lions _______.| A．are cruel animals | B．are clever animals |
| C．like to take advantage of other animals | D．like to take every chance to eat |
| A．Lions make most kills in the daytime. |
| B．Males care more about eating than active killing. |
| C．Lions are not interested in things happening around them. |
| D．It doesn’t take lions too much time to make a kill. |
| A．They depend on each other. | B．They look after each other well. |
| C．They readily share what they have. | D．They enjoy each other’s company. |
| A．Powerful Lions | B．Lions at Work and Play |
| C．Lions, Social Cats | D．Lions, Skilled Hunters |
【推荐3】We sometimes have the wrong ideas about the things around us, for example, some things about cats that people believe might not be true. These myths (荒诞的说法) can make cat owners confused (困惑的). Let’s learn the truth about them.
Some people think that cats need to drink milk. That is not true. If a cat eats well, it does not need to drink milk. Does your cat drink milk? Most cats like milk, but too much of it can make them sick. They can only have a little milk.
Some people put garlic in cat food. They believe it will keep worms (寄生虫) away from a cat’s body. Does it work? No, it does nothing to worms. It will give the cat bad breath! If your cat has worms in its body, take it to see a doctor. The doctor will give medicine to the cat.
Some people think that a cat’s whiskers (须) can help it keep balance (平衡). In fact, whiskers have nothing to do with balance at all. They help the cat know about things around.
Have you heard these myths about cats before? Don’t believe them. Cats need good owners to care for them. It’s a good idea to learn how to care for cats by reading books or talking to experts.
1. If there are worms in a cat’s body, what should we do?| A．Put garlic in cat food. | B．Take the cat to see a doctor. |
| C．Give some milk to the cat. | D．Let the cat drink more water. |
| A．The size of a cat’s whiskers. | B．The color of a cat’s whiskers. |
| C．The use of a cat’s whiskers. | D．The shape of a cat’s whiskers. |
| A．Some myths about cats in the passage are true. |
| B．Most cats need to drink much milk. |
| C．A cat’s whiskers can help it keep balance. |
| D．Cats can only have a little milk. |
| A．A guidebook. | B．A science magazine. |
| C．A health magazine. | D．A storybook. |
A． | B． | C． | D． |
【推荐1】TRY THIS
1. In which steps do we need the glass?
| A．Step 1 and Step 4. | B．Step 3, Step 4 and Step 5. |
| C．Step 4 and Step 5. | D．Step 1, Step 3, Step 4 and Step 5. |
| A．the wet string | B．the tiny water molecules |
| C．the tension of the water surface | D．the tilted (倾斜的) pitcher |
| A．English novel | B．tour guide | C．teenage newspaper | D．geography book |
【推荐2】Roger Tyers, 37, spent a month on board trains and over $2,500 — almost three times the cost of a return flight — to travel to the Chinese port city Ningbo for an academic research in May. It was the climate crisis, not a love for trains, that made the sociologist (社会学家) choose this difficult route over a return flight.
According to a survey in May 2019 by Swedish Railways (SJ), 37% of interviewees chose to travel by train instead of plane where possible, compared to 20% at the start of 2018. An SJ spokesperson said: “Travelling by train is becoming more popular thanks to climate fears.”
A passenger’s footprint from an individual flight depends on a number of causes, including how far they fly and how full the plane is, but also on what class they travel in: First class passengers are given more space than economy passengers, meaning they’re responsible for a bigger part of the plane's emission (排放).
Tyers calculated that his train journey to China produced almost 90% less emission than a return flight.
The aviation industry (航空业) gives off 2% of man-made carbon dioxide emission (CO2). By 2050, this is expected to increase to 22% if nothing changes. A passenger on a return flight from London to New York produces much CO2. It is the same as the average person in the European Union does by heating their home each year, according to the European Commission. We should pay special attention to it and can surely do something to change it.
1. Why did Tyers spend a month on board trains to Ningbo?| A．Because he is worried about the climate crisis. | B．Because travelling by train is more comfortable. |
| C．Because he is a sociologist who loves train. | D．Because travelling by train is much cheaper. |
| A．About 3,400. | B．About 6,290. | C．About 20,000. | D．About 37,000. |
| A．The aviation industry will give off less than 2% emissions by 2050. |
| B．Tyers’s train journey produces 90% more emissions than a return flight. |
| C．The farther we travel by air, the less emission we should be responsible for. |
| D．First class passengers should be responsible for bigger part of the emissions. |
| A．What climate change will do to people. | B．How to deal with the pollution. |
| C．What we can do to change the situation. | D．How to cut down the travel cost |
【推荐3】“Without music, life would be a mistake,” famous German philosopher Friedrich Nietzsche said over a century ago. Music is a big part of our lives. But in recent years, some US schools have cut music classes to control budgets (预算).
For example, Chicago public schools hurt arts education when it fired over 1,000 teachers. Among them, 10 percent of the teachers taught art or music, according to The Washington Times. In fact, this is not just a problem in the US. In other countries, such as China and the UK, music classes are not thought to be as important as ones like science, math and history. That’s partly because music is not seen as a very important life skill, and it isn’t tested. Many students are busy with schoolwork, so parents and students choose to focus on subjects that are tested more often.
However, learning music is beneficial in many ways. When playing music, you need different abilities to work together. It is not as simple as it looks, according to Kenneth Guilmartin of Music Together, an early childhood music Development program. For example, when playing the piano, people see music notes and decode (解码) them in their brains. They also use their fingers to make sounds. You need to deal with all these things at the same time.
Music has a special connection with science as well. You can see that many scientists are good at playing music: Einstein played the violin, and German physicist Max Planck did well in playing the piano.
1. Some schools in the US cut music classes, because ________.| A．they were too difficult to learn |
| B．students in the US weren’t interested in music |
| C．the schools wanted to control budgets |
| D．there weren’t enough music teachers in the US |
| A．Fired teachers. | B．Public schools. | C．Parents in Chicago. | D．Students in Chicago. |
| A．Playing the piano needs people to see music notes. |
| B．Playing the piano needs people to use fingers to make sounds. |
| C．Decoding music notes is needed while we are playing music. |
| D．Different abilities are needed to work together while we are playing music. |
| A．One. | B．Two. | C．Three. | D．Four. |
| A．Music is as simple as it looks. | B．Music classes should be cut in some schools. |
| C．Music is a big part of our lives. | D．Music isn’t a very important life skill for us. |
Because of the opening policy, economy between China and the outside world changes. They have increased greatly. People can come and go easily between China and Hong Kong. Both foreigners and Chinese have built a lot of factories, companies and tourist attractions there. People from all over the world have come there to find jobs.
Many of them have
1. Shenzhen lies ______ China.
| A．in the south of |
| B．in the east of |
| C．in the north of |
| A．worked in the factories |
| B．did housework |
| C．caught fish for living |
| A．1880’s | B．1980’s | C．1890’s |
| A．They have come to visit their friends. |
| B．They have built a lot of factories and companies. |
| C．They have come to buy things. |
| A．创业 | B．安顿 | C．搬迁 |
【推荐2】Do you know World Sleep Day? World Sleep Day is an important event. It is a celebration of sleep and a call to action on important things related to（与……相关的）sleep, such as medicine, education and driving.
People celebrate it on the Friday before the spring equinox（春分）of each year. Events and activities of World Sleep Day are free and open to the public. “World Sleep Day is an important and successful event. Everyone needs to understand how important sleep is. Good sleep is so necessary, if you want to have a healthy life,” Dr William C. Dement, a spokesperson of World Association of Sleep Medicine said.
We all need to sleep, and the sleep hours are different from person to person. Without enough sleep, the body can die. For many of us, sleep is one of the biggest pleasures in life. In fact, many people see sleep as a hobby! Enough sleep can make us full of energy, so it is very important.
However, it is difficult for many people to get to sleep at night. That is to say, they have insomnia（失眠）. There are over 80 kinds of sleep-related problems. Some people are lucky and have no sleeping problems. They sleep as soon as their heads hit the pillows. Do you sleep well?
1. How often do people celebrate World Sleep Day?| A．Once a month. | B．Twice a month. |
| C．Once a year. | D．Twice a year. |
| A．When we should go to sleep. |
| B．Why sleep is so important. |
| C．How many people like sleep. |
| D．How many hours’ sleep is the best for people. |
| A．Health. | B．Travel. | C．Future. | D．Sports. |
【推荐3】Look at the picture. This is our school. There are five buildings in our school. There are thirty- two classrooms in the Teaching Building. Our gym is behind the Teaching Building. The teacher’s offices are in the Office Building. Our Library Building is next to the Office Building. There are many books and magazines (杂志) in the library. Is the Library Building next to the Science Lab Building? No, it’s in front of it. There are seven labs (实验室)in it. Behind the Science Lab is the dining hall. In the dining hall there are many tables and chairs. We have meals there. Welcome to our school.
1. Our school has got __________ buildings.| A．2 | B．3 | C．5 | D．8 |
| A．behind | B．in the front of |
| C．in front of | D．next to |
| A．next to | B．behind | C．on | D．in front of |
| A．the Teaching Building | B．the gym |
| C．the Science Lab Building | D．the Office Building |
| A．the dining hall | B．the library |
| C．the science lab | D．the offices |
【推荐1】Sydney-A shark savaged a schoolboy's leg while he was surfing with his father at a beach in Sydney on February 23. It was the third shark attack along the coast of Australia's largest city in a month.
The 15-year-old boy and his father were in the water off Avalon, on Sydney's northern beaches, around dawn when he was attacked. The city's beaches are packed with locals and tourists during the summer months.
"The father heard a scream and turned to see his son thrashing (激烈扭动) about in the water," police said. "Fortunately, the shark swam away and the boy was helped to the shore by his father."
Lifesaving Club spokesman Nick Miller said, "It got him around the top of his left leg and the father came and dragged him out of water." He said the boy was bleeding heavily when he was brought to the shore. "There was a lot of pain, as you can imagine." The teenager was airlifted to hospital for treatment for leg injuries.
Police said the bites "cut through to the bone", but the boy did not appear to have sustained any fractures (骨折). He was in a stable condition now.
Several beaches were closed after the attack. Water police and lifeguards were searching for the shark, while police hoped to identify its species by the shape of the bite marks. But they said it was too early to say what type of shark attacked the boy. "I don't even know if he saw it," Miller said.
Many shark species live in the waters off Sydney's beaches, but attacks on humans are still relatively rare. However, there were two attacks on successive days earlier this month, one on a navy diver in Sydney harbor, not far from the famous Opera House, and the other on a surfer at the city's world-famous Bondi beach.
Fishermen say shark numbers are on the rise. There is a ban on commercial fishing in the harbor, which has increased fish stocks. Marine experts also claim environmental protection has created a cleaner environment, attracting sharks closer to the shore as they chase fish. Many shark species, including the Great White-the maneaters made famous in Steven Spielberg's Jaws-are protected in Australian waters.
1. The report mainly tells us________.| A．shark attacks on humans are on the rise |
| B．sharks attacked humans three times in one month |
| C．a boy was attacked by a shark at a Sydney beach |
| D．shark numbers are increasing in the waters off Sydney's beaches |
| A．attracted | B．dragged | C．bit | D．packed |
| A．It is one of the largest cities in Australia. |
| B．Sydney harbor is not far from the famous Opera House. |
| C．There are many locals and tourists on its coast all the year round. |
| D．There are few shark species in the waters off Sydney's beaches. |
| A．he was losing much blood when he was dragged out |
| B．he was very nervous when he was sent to hospital |
| C．he may be in danger of losing his leg |
| D．he was injured in the right leg |
| A．environmental protection has created a cleaner environment |
| B．a ban on commercial fishing has increased fish numbers |
| C．many shark species are protected in Australian waters |
| D．the film Jaws has made the Great White famous. |
【推荐2】Many people are trying to save the earth with special days like “Meatout Day”, “Earth Day” and “Buy Nothing Day”.
“Meatout Day” is on March 20th. Many people around the world don’t eat any meat for one day. In this way, they’ll get healthier and reduce (减少) greenhouse gases.
“Earth Day” is on April 22nd. Many people all over the world try to do something green on this day. In Italy, people don’t use plastic bags. In Canada and Norway, people ride bicycles and don’t use their cars. In the USA, people dress up like plants and animals to dance in Times Square, New York.
“Buy Nothing Day” is usually on the fourth Friday in November. On this day many people don’t buy anything. “Buy nothing” means “make no rubbish”. When you make less rubbish, you can make a cleaner earth.
Do you want to join them? Then you can remember these special days and do something green.
判断下列句子是否符合短文内容。符合的写T，不符合的写F。
1. Many people don’t eat any meat on “Meatout Day”.
2. In Italy, people ride bicycles and don’t use their cars on April 22nd.
3. Many people do nothing to protect the environment on “Earth Day”.
4. Many people buy and sell nothing on “Buy Nothing Day”.
5. The passage mainly tells us the special days about saving the earth.
【推荐3】Everyone has got two personalities (性格) —the one that is shown to the world and the other that is secret and real. You don’t show your secret personality when you’re awake because you can control your behavior, but when you’re asleep, your sleeping position shows the real you. At night, of course, people frequently change their positions. The important position is the one that you go to sleep in (入睡).
If you go to sleep on your back, you’re a very open person. You normally trust people and you are easily influenced by new ideas. You don’t like to displease people, so you never express your real feelings. You’re quite shy and you aren’t quite sure of yourself.
If you sleep on your stomach, you are a rather secretive person. You worry a lot and you’re always easily upset. You always stick to your own opinions, but you don’t raise your hopes too much. You usually live for today not for tomorrow. This means that you enjoy having a good time.
If you curl up (蜷缩) when sleeping, you are probably a very nervous person. You have a low opinion of yourself and so you’re often defensive. You’re shy and you don’t normally like meeting people. You prefer to be on your own. You’re easily hurt.
If you sleep on your side, you have usually got a well-balanced personality. You know your strengths and weaknesses. You’re usually careful. You believe in yourself. You sometimes feel anxious, but you don’t often get sad. You always say what you think even if it makes other people rather angry.
1. You may find the passage in ________.| A．a science magazine | B．a guidebook |
| C．a sports newspaper | D．a storybook |
| A．In the daytime. | B．At the beginning of sleep. |
| C．At night. | D．During the deep sleep. |
| A．curled up | B．on her stomach |
| C．on her back | D．on her side |
| A．易怒的 | B．攻击性的 | C．外向的 | D．有戒心的 |
| A．Sleeping on your side is the best way of sleeping. |
| B．Changing positions will cause sleeping problems. |
| C．Sleeping positions show people’s secret personalities. |
| D．Enough sleep makes people look better and healthier. |
