阅读理解。 Growing kids need sleep, as do people of all ages. Indeed, research sh
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阅读理解。 |
Growing kids need sleep, as do people of all ages. Indeed, research shows that health and safety both suffer when we try to get by with too little shuteye. So it"s fortunate that our bodies do such a good job of waming us when it"s time to hit the sack. Like humans, other animals also take time out to rest. You"ve probably seen a lion dozing at the zoo, or maybe watched our dog snooze away lying in its bed. In fact, sleep is a necessity for every animal that"s ever been studied. How long animals sleep, though, varies widely. Elephants and giraffes sleep only about 2 to 4 hours a day, while bats may nod off for up to 20 hours. Ducks sleep together, and the birds on the edge of the group sleep with the outside eye open and half of their brain awake-probably to keep watch while the other half of their brain snoozes. Some birds may even sleep while flying. The fact that all animals make time for sleeping, even under very dangerous situations, suggests that sleep is very important. And indeed, some facts suggest that sleep is important for leaming and forming permanent memories. But sleep may also be primarily a way for animals to save energy and stay out of harm. This may help explain why meat-eating creatures sleep more than herbivores, which are animals that live only on plants. Herbivores, like cows and zebras, need to spend more time searching for and grazing on food than meat eaters do, such as lions and other big cats. So a big cat might be better off sleeping for a while after it eats, rather than prowling around and risking injury. But that"s just a guess. Scientists need to study other animals as well before they can fully understand the benefits (好处) of sleep and know which benefits are most important for a particular species (物种). One thing is certain: enough sleep is important to health and learning. So give in when a strong wish to sleep hits, and catch plenty of ZZZs. |
1. The underlined phrase "to hit the sack" means ____. |
A. to eat something B. to drink something C. to get up D. to go to sleep |
2. From the last paragraph, we can infer ____. |
A. enough sleep may improve your learning in class B. if you want to sleep in class, fall asleep immediately C. you are easy to give in if you have plenty of sleep D. if you have a strong wish to sleep, you are perhaps ill |
3. The main idea of the passage is about ____. |
A. all people need sleep B. how animals sleep in the open air C. why animals need sleep D. when animals feel sleepy |
答案
1. D 2. A 3. C |
举一反三
阅读短文,根据回答问题。 |
November 24, 1859 was a special day in London. On that day, many Londoners rushed to a bookstore to buy a book that was just published. The first printing of 1250 copies sold out on the first day. The popular book was The Origin of Species (《物种起源》) by British naturalist Charles Darwin (1809- 1882). In the book, Darwin argued that different forms of life could change over time because of natural selection. This means that only those who are best suited to their environment will live and reproduce. Darwin supported his arguments with examples he found during his around-the-world trip in the 1830s. The book laid the foundation of modern biology. It changed how other scientists understood the appearance of life on Earth. A hundred and fifty years later, Darwin"s theory (理论) of natural selection still has great influence in the world of science. But some people have a question: since medicine and modem life have made people healthier, are we still evolving (进化) by natural selection? The answer is yes,according to Stephen Stems and his team of Yale University researchers. They did a study on 2 238 women in the US. They found that shorter,heavier women have more children than thinner, taller ones. This trend (趋势) runs among their female children and grandchildren. So if this continues, women in 400 years will be about 2cm shorter and a kilo heavier. Stems" findings are supported by other scientists. For example, John Hawks at the University of Wisconsin, US and his team believe they have found nearly 2000 gene variations(基因变异) in modem humans. Those variations allow people to drink milk, fight disease and improve brain development. |
1. Was The Origin of Species a popular book? _______________________________________________________________ 2. When was the book published? _______________________________________________________________ 3. What does natural selection mean? _______________________________________________________________ 4. Why does the writer introduce Stemns" findings in the passage? _______________________________________________________________ 5. Why is Darwin"s theory of natural selection important? _______________________________________________________________ |
先阅读短文,然后根据短文内容从方框内所给的单词中选择最恰当的词(注意词形变化)填入短文 空白处,使短文完整、通顺。一词只用一次,一空限填一词。方框中有两个词是多余的。 |
Talk to someone if you are having problems with schoolwork. Speak up as soon as you can, so you can get help right away before you fall behind. Your 1_____ are often a great place to start if you need help. Talk about your problem with them. They might be able to 2_____ you how to do a difficult math problem or help you think of a topic to write about for English class. They also can be helpful by finding that perfect place in the house for you to do your homework and keeping supplies, like pencils, on hand. They also can cut down on distractions (分心的事) like 3_____ younger brother and sisters! Teachers are also important to you because they can give you advice about the assignment (作业) you are 4_____ trouble with. They also can help you set up a good system for writing down your assignments and remembering to put all necessary books and papers in your backpack. Teachers can give you study tips and offer ideas about how to 5_____ with homework. Helping kids learn is their job, 6_____ be sure to ask for advice. Many schools, towns and cities offer after-school 7_____ to kids. They often help kids with their homework and organize kids to 8_____ in different kinds of activities. There, you will not only be able to get some help from adults, but also from other kids. You can also use the Internet to 9_____ online homework help sites. These sites can lead you to good resources (资源) for research and offer tips and guidance about many 10_____. But be careful about just 11_____ the information from an Internet website. Talk with your teachers about bow to use the resources properly. |
阅读理解。 |
Children are children after all, and most of them speak their mind. When they are just toddlers (幼儿), they are all lovely and lively. And it"s so interesting to watch them speak like a grown-up. But as they grow, these same kids seem annoying and ill-mannered if they try to be a grown-up. Conflicts (矛盾) go between parents and children. It"s hard to tell who are right and who are wrong. A child of 7-8 always finds some reasons to have a conflict with it"s parents. Whether it is about some toy, studies, a party or a company, there is always a difference between them. And it becomes worse when they answer you back. Scientists tell us that children should be treated with care. Yes, sure they should respect their elders. We are partly responsible (有责任的) for this. At an early age we encourage children to behave like adults, just because we find it funny. The kids on the other hand consider this same behavior as normal and get used to it. And when it is not funny for us any more, we expect them to stop it, but by then it is already too late. Only when they reach a certain maturity will the children realize that answering back and being rude are not acceptable (可接受的). Until then, most of the time their behavior is difficult to change, unless by force (暴力). And use of force is against the every good idea, as it weakens the child"s confidence. So it is one thing to bring a child into this world but quite another to make them into well mannered citizens. The best way is to be a good example ourselves, as our children are the mirrors of us adults. |
1. _______ are all lovely and lively. |
A. Children B. Toddlers C. Kids D. Grown-ups |
2. There are many conflicts between _______. |
A. fathers and mothers B. parents and children C. parents and toddlers D. parents and parents |
3. The underlined word "maturity" means _______. |
A. 学期 B. 阶梯 C. 知识 D. 成熟 |
4. Which is acceptable according to the passage? |
A. Answering back. B. Being rude. C. Using force. D. Respecting elders. |
5. Which of the following is true? |
A. Children often copy what their parents do. B. Children can not change their behavior. C. Children"s behavior develops in their own way. D. Children"s behavior is not acceptable. |
6. The writer wrote the passage _______. |
A. to show the importance of good examples B. to give examples on educating children C. to show the growth of children D. to show the behavior of children |
阅读理解。 |
Strong earthquakes hit the east of Japan in the afternoon of March 11, causing several meter-high tsunami (海啸), which killed more than 10,000 people in areas along the coast. Several nuclear plants (核电站) at the coast were broken by the earthquake and tsunami. People living near the plants have been asked to move away. People living within 30 kilometers of the first plant are asked to stay indoors and close all windows. The breaking of the nuclear plants is causing electricity shortages (电力短缺) in Eastern Japan. As a result, electricity is cut off for 3-hour periods in the area of Tokyo and some other areas during daytime. In order to save electricity, some shops, restaurants and tourist places in the areas are closed for some time every day. But all major airports and train lines are still open and operating. For the above reasons, tourists are advised not to visit the eastern areas in the near future. Visits to Western Japan are not affected by the event. People who plan to travel over the coming weeks and months are advised to pay attention to the situation for a few more days before making decisions. |
1. This passage may probably be written by a _____. |
A. scientist B. traveler C. story writer D. news reporter |
2. People living near the plants were asked to move away because _____. |
A. there would be more earthquakes and tsunamis B. several nuclear plants had been broken C. there were serious electricity shortages D. their houses were washed away by the tsunami |
3. They closed some shops and restaurants for some time every day to _____. |
A. avoid making electricity shortages even worse B. avoid more people getting together C. rebuild their broken buildings D. keep away from nuclear radiation (核辐射) |
4. The word "_____" can be used instead of the underlined word "advised" in the last paragraph. |
A. found B. invited C. told D. met |
5. Which of the following is right? |
A. The earthquake happened before the tsunami. B. The earthquake happened after the tsunami. C. There was no electricity in Eastern Japan. D. People were not allowed to visit Western Japan. |
阅读理解。 |
Big ocean fish have almost been endangered since the start of business fishing in the 1950s. The scientists found that the number of large fish has dropped by 90 percent in the past fifty years. The study took ten years. The researchers collected records from fishing businesses and governments around the world. The magazine Nature published (发表) the findings. The scientists say the common way called longline fishing is especially harmful to large fish. This way includes many fishing lines that are connected (连接) to one boat. If these lines are joined together, they can reach one hundred kilometers. They hold thousands of sharp metal hooks (钩) to catch fish. Longline fishing is especially common in the Japanese fishing industry. Records showed that Japanese boats used to catch about ten fish for every one hundred hooks. The study says longline fishing boats now might catch one fish per hundred hooks. The scientists say business fishing can destroy groups of fish much faster than in the past. It"s not the only worry that the number of large fish is becoming smaller and smaller. What"s worse, they are smaller in size than their ancestors (祖先). |
根据短文内容完成表格,每空一词。 What is happening to ocean fish?
Items (项目) | Situations | Results | 1._____ _____of ocean fish | The number of ocean fish has dropped by 90% in the past fifty years. | The number of fish 2._____ _____. Smaller and smaller. | The size of ocean fish | Big ocean fish have almost been 3._____ since the start of business fishing in the 1950s. | The size of ocean fish is not 4._____ _____ as that in the past. | The way of fishing (捕鱼) | Long-line fishing can be especially had to 5._____ _____. | Business fishing can destroy fish groups a lot faster than in the past. |
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