We sometimes call the lion "the king of the jungle" Because it is stronger and more dangerous than other animals. 1_______ It is the highest animal in the land food chain. In the sea, the shark is one of the animals at the top of the food chain. It can swim faster than most other sea 2_______ 3_______ People are! We are not the biggest or fastest. but we are the cleverest. We could not run faster than cheetahs, so we invented cars and now we can move the fastest. We could not fight better than joins. so we invented puns. Now we ran hunt the best-People"s inventions are clever, but they can be dangerous, too. For example, people invented lactones, and now they make the air and rivers dirty. 4_______ Dirty rivers kill fish. Then bears cannot eat the fish and die. If we kill one part of the food chain. other parts also die. Remember that we are a part of the food chain. so we are in danger, too! 5_______ We should and we could do something for the world!
A. Protecting animals is protecting ourselves! B. And it can use its big teeth to eat them. C. This can make terrible changes. D. What is at the top of the world"s food chain? E. It can run baler than many animals and it ran hunt the best. | “低碳生活,从我做起!”请仔细阅读下列材料,找出以下五种“低碳”行为产生的直接效应。 | A. Saving electric energy B. Protecting forests C. Saving water D. Protecting animals E. Producing less air pollution | 完形填空。 | It is very important to stay healthy. I have a neighbor. She is an old lady. She can do all the housework, 1 newspapers, watch TV and search on the Internet to learn something new. I often see 2 do taijiquan in the morning and dance in the evening. She looks young and beautiful 3 she is over seventy. Last week a reporter from a magazine interviewed her and asked 4 she kept so young and healthy. She replied with a smile: I have a secret of staying young and healthy. It is quite 5 . Keep your mind active, take an interest in the world 6 you, and learn at least one new thing every day. Try to do different kinds of housework and do sports as 7 as you can. Don"t think you are too old to go back to 8 . I know a man who entered a medical college when he was 70 years old. He studied there for 6 years and now he is a doctor. Another man went to a tennis school at the age of 71 and now he is good at 9 tennis. Some people may say staying young is easy only for those who live in the future. In fact, no matter how old you are, you can make it. Please tell the story to your family. It would be a good start to 10 the lady"s example. I hope all people will stay young and healthy. | ( )1. A. look ( )2. A. her ( )3. A. than ( )4. A. what ( )5. A. early ( )6. A. under ( )7. A. soon ( )8. A. place ( )9. A. buying ( )10. A. follow | B. read B. him B. since B. why B. dear B. around B. busily B. song B. losing B. give | C. see C. other C. though C. who C. easy C. above C. hardly C. school C. sending C. make | D. watch D. others D. because D. how D. late D. between D. often D. dance D. playing D. bring | 阅读理解。 | How do you remember the way to your house? Where do dreams come from? It is your brain (大脑) that does these things. A British scientist showed that "sleep can improve one"s memory." It"s not a dream for students to study when they sleep. In fact, your brains is working day and night. If you learn words before bed, a certain part of the brain may help you to remember the words while you sleep. What"s more, another scientist in the USA found that there was a "talent button (天才按钮)" in the human brain. It might make a person more talented. There are more interesting things about the brain. Your brain uses less energy than a fridge light. Just two bananas can give the brain enough energy to work for a whole day. According to some scientists, yawning (打哈欠) keeps our brains "cool", which makes us think quicker. Here are some pieces of advice to keep a good brain: ● Eat healthy food. ● Get a lot of playtime or exercise. ● Don"t drink or smoke. ● Use your brain a lot. | 1. A British scientist found out that ________ could improve our memories. | A. drink B. dreams C. sleep D. bananas | 2. According to the passage, if we want to have a good brain, we should ________. | A. use our brains more B. sleep fewer hours C. work longer hours D. remember fewer things | 3. Which of the following is TRUE according to the passage? | A. Our brains only work in the daytime. B. Our brains need much energy every day. C. Smoking can keep our brains healthy. D. Getting exercise is good for our brains. | 从方框中所给的选项中选出能填入空白处的最佳选项,补全短文,其中有一项为多余选项。 | March 20th is World Water Day every year. According to a report from the United Nations, more than half of the world"s major rivers have serious water loss and are polluted. The Yellow River, the world"s fifth longest river, watered some of the oldest farms on earth. But now it has a serious problem. 1_______ In most of the past 35 years, it didn"t reach the sea. The Nile in Egypt, running 6, 650 km, is the longest river in the world. 2_______ Now it is down to 2 billion m" or so. Australia"s Murray River reaches the sea only every other year. One fifth of America"s Rio Grande has no water, either. 3_______ Mostly it"s damming (筑坝) and global warming that make rivers dry. 4_______ Now about 45, 000 of them lie across the world"s rivers. They hold back around 15% of the world"s fresh water from running to the sea. Global warming is making things worse. Warmer weather takes water away. The glacier (冰川) are becoming smaller. 5_______ Global warming has had certain effects on water sources (源头). Droughts (干旱) happening around the world make people pay more attention to this fact. A. Dams hold water to irrigate (灌溉) fields and make power. B. The source of the Yellow River is drying up because of it. C. It used to carry 32 billion m" of water a year. D. How does it happen? E. Factories pour waste water into rivers directly. F. Its source on Qinghai-Tibet Plateau is drying up. |
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