题目
题型：不详难度：来源：
How is acid rain created?
When people use fuels(燃料), such as coal and gasoline, poisonous gases are give off. When these gases mix with rain, acid rain forms. Many power stations burn fuels in order to creat the electricity(电) that we use in our homes and offices every day. Cars and trucks also send these gases into the air when they burn gasoline .When rain mixes with these gases, harmful things called acids form. This is acid rain.
How does acid rain affect us?
Acid rain damages(毁坏)everything that it touches. It poisons our rivers, ponds, lakes, and oceans along with all the life in them. It pollutes our soil and crops, harms trees, and can even kill fish and plants. Acid rain also eats away at buildings.
How can we prevent acid rain?
We need to cut down on the pollution that gets into our air. Turn off lights, television, and other electrical appliances if you are not using them, Walk or take a bike whenever possible. If you are travelling a long distance, take a bus or train to save fuel.
As research shows, acid rain harms our environment. But people everywhere can take small steps now to help protect our environment for future generations.
小题1:When power stations burn fuel,_______.
| A．acid rain form | B．air pollution is caused |
| C．noise pollution is caused | D．acid rain gets heavier |
| A．suddenly | B．slightly | C．seriously | D．immediately |
| A．Go to school on foot or by bike if we can. |
| B．Go to bed earlier in order to use less electricity. |
| C．Travel by bus to prevent acid rain. |
| D．Turn off the television on rainy days. |
| A．Preventing Acid Rain | B．Forming of Acid Rain |
| C．Acid rain, Heavy Rain | D．Acid Rain, Killer Rain |
答案
小题1:B
小题1:C
小题1:A
小题1:D
解析
小题1:B．细节理解题。根据When people use fuels(燃料), such as coal and gasoline, poisonous gases are give off. 可知答案为B。
小题1:C。细节理解题。根据How does acid rain affect us?这一段可知答案为C。
小题1:A。细节理解题。根据“Walk or take a bike whenever possible.”可知答案为A。
小题1:D。概括归纳题。根据短文大意可知答案为D。
核心考点
试题【Every time you turn on the television or take a ride in a car ,you could be addi】；主要考察你对科普环保类等知识点的理解。[详细]
举一反三
Recently, a British survey found that electronic(电子) products in teenagers bedrooms are affecting(影响)their sleep.
The survey was done among 1,000 British kids from 12 to 16. It found that thirty percent of them got just 4 to 7 hours sleep every day. But doctors say they need 8 to 9 hours.
Almost a quarter of the kids said they fell asleep more than once a week while watching TV, listening to music or using other electronic products.
“This is very worrying.” Said Dr Chris Idzikowski, a British expert, “We call it ‘junk sleep’, It means you don’t get enough sleep and the quality of the sleep is bad, too. If you don’t get good rest, you don’t perform well in school the next day.”
The survey found that 40 percent of the kids felt tired each day, with girls between 13 and 16 feeling the worst. Nearly all the teenagers have a phone, Mp4 or TV IN THEIR BEDROOM. And many of them have all three.
小题1: This passage is mainly about______.
| A．junk food | B．junk sleep |
| C．electronic products | D．the importance of sleep |
| A．200 | B．300 |
| C．500 | D．1,000 |
| A．they are both low in quality | B．they are both produced in factories |
| C．people enjoy both in their spare time | D．they are both good to people’s health |
| A．Teenagers need 4 to 7 hours of sleep each day. |
| B．Few of the teenagers have a phone in their bedrooms. |
| C．Teenagers spend too much time on electronic products. |
| D．Girls between 15 and 16 spend the least time on electronic products. |
| A．Parents watch TV together with their children |
| B．Forbid teenagers to use any electronic product. |
| C．Teenagers limit (限制) their use of the electronic products. |
| D．The use of mobile phone and Mp4 is not allowed at school |
Scientists have found out that the radiation（辐射） is the greatest danger to spacemen in space. When spacemen are working in space, they are in danger of the radiation from the sun and other stars, which is bad for their health. The harm of the radiation won’t be found until their children even grandchildren are born. Some special medicine may work a little, but no really effective medicine has been found so far.
Space rubbish is also thought to be a great danger to spacemen. It’s reported that there were 9,000 man-made things flying in space. About 30% of these are satellites, 10% are spaceships, and the rest are space rubbish. An explosion（爆炸）in space in 1999 made a cloud of 300,000 fragments, each at least 4mm in size. A small piece of these even knocked a spaceship window and caused some damage（损坏）.
Scientists are watching and reporting any possible danger all the time. They are working to deal with space rubbish. Although space is really dangerous, it interests many people on the earth. In the near future, it may become possible for people to spend a few days in a space hotel. We may even choose to leave the earth and live in space in a few years. So we should do something to help improve the space environment.
小题1: ______ shows the man-made things in space in the correct way.
| A． | B． | C． | D． |
| A．good | B．helpful | C．useful | D．harmful |
| A．碎片 | B．泡沫 | C．烟雾 | D．飞碟 |
| A．two | B．three | C．four | D．five |
| A．Scientists have found out ways to solve any problem in space. |
| B．Every one of us can have a travel to space in ten years. |
| C．The harm of the radiation may be found in the spacemen’s children. |
| D．Space is really dangerous, so it doesn’t interest anyone on the earth. |
Selecting is very important for your grades in America. So at the first term, don’t select too many courses, 74.or you’ll feel very nervous and it may influence your study. Then you have to ask for some teaching plans. There is some information about subjects, time arranging, marks and textbooks. At the same time, you must choose the teachers. Different teachers have different teaching methods. If the teacher is called “killer” by the last grade, many students will give up choosing him. Because this kind of teacher will leave too much homework, too many exams and give too low grades.
There is another thing after you select the course and the teacher. How to buy textbooks makes each student feel hard. The textbooks in America are very expensive. Each copy is about $30～50. In order to save money, many students buy some used textbooks, and some students usually borrow textbooks from the school library. You must get enough ready before class. In class, discussing is very important. 75. 老师鼓励你提出问题或展示你自己的观点。They don’t usually ask you to sit well. Instead they allow you to sit or stand everywhere you like. They don’t give you much homework to do. You can learn some knowledge and do exercises by yourself. So in American schools, you must do almost all things yourself.
根据文章内容，补全71、72句中所缺单词、短语或句子。
小题1: At the beginning of the new term, American students have to ask for some teaching plans and get their textbooks ready besides ____________________.
小题2: The teacher____________________will always leave too much homework, too many exams and give too low grades.
小题3: 根据文章内容回答问题。
Why do many students in America buy used textbooks ?
小题4: 请将文中黑体字译成汉语。
小题5: 请将划线句子译成英语。
“It’s been a pleasure teaching you this term,” he said. “You’ve all worked very hard, so I have a pleasant surprise for you. Everyone who chooses not to take the final exam will get a ‘B’ for the course.”
Most of the students jumped out of their seats. They thanked the teacher happily, and walked out of the classroom. Only a few students stayed. The teacher looked at them. “This is your last chance,” he said. “Does anyone else want to leave?” All the students there stayed in their seats and took out their pencils.
The teacher smiled. “Congratulations (祝贺),” he said. “I’m glad to see you believe in yourselves. You all get A’s.”
小题1:This story most probably took place .
| A．at the beginning of the term | B．in the middle of the term |
| C．at the end of the term | D．at the beginning of the school year |
| A．‘A’ | B．‘B’ | C．‘C’ | D．‘F’ |
| A．Because they wanted to take the exam. |
| B．Because the teacher told them to stay in their class. |
| C．Because they were afraid to leave. |
| D．Because they didn’t have anything to do. |
| A．the teacher liked them |
| B．they were cleverer than the other students |
| C．they believed in themselves |
| D．they studied hard |
| A．students staying in their seats | B．students leaving the classroom |
| C．their seats | D．all the students |
To treat the break, the doctor will need to take an X-ray. This gives the doctor the information he or she needs to set (接上) the bone: to put it back to its normal place. If the bone is large or it is broken in more than one place, the doctor may need to use metal pins (钢钉) to set it. After the bone has been set, the next step is usually putting on a cast, the special, hard thing that will keep the bone in place for a month or two.
Your bones are excellent at healing themselves. Broken bones will produce many new cells (细胞) and tiny blood vessels (血脉). These cover both ends of the broken part, and close up the break until the bone is as whole and strong as before.
小题1: Which of the following is the best title for the passage?
| A．How to Know if a Bone is Broken |
| B．How Broken Bones Heal Themselves |
| C．Common Causes (原因) of Broken Bones |
| D．What You Should Know about Broken Bones |
| A．asking the doctor for help | B．comforting the hurt person |
| C．moving the injured part | D．staying calm |
a. take an x-ray b. use metal pins to set it c. put it back to its normal place d. put on cast
| A．a→b→c→d | B．a→c→b→d | C．a→d→c→b | D．d→a→b→c |
| A．break again | B．become worse | C．wound or hurt | D．become healthy again |
| A．In a story book. | B．On a poster. | C．In a health care book. | D．In a chemistry book. |
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