题目
题型：不详难度：来源：
LABORATORYRULES
Throughout the lesson
·Do not enter the science lab without the teacher’s permission.·No food or drinks are to be alowed in the science lab.
Before the Experiment
·Read al instructions carefuly before every experiment.
·Prepare al apparatus（仪器）and arrange them so that you wil not knock them over while doing the experiment.
During the Experiment
·If you are unsure of how to use any apparatus or how to operate, ask your teacher for help.·Never smel o
r taste chemicals unless your teacher gives permission.After the Experiment
·Wash al apparatus after use and return them to the places where they were.
·Throw waste materials in proper waste baskets. First Aid
·Report al accidents to your teacher immediately.
·If you spil（ 溅 出 ）any chemicals onto your body or clothing, wash with plenty of water and report to your teacher.
小题1: Yo
ur teacher wil probably tel you the rules above _____ the first lab lesson.| A．before | B．since | C．during | D．after |
| A．taste the chemicals first |
| B．clean al the apparatus |
| C．read al instructions carefuly |
D．report al the accident s to the teacher |
A. try them on your own
B. read the rules carefuly
C. ask your teacher for help
d. put them back
小题4: It i
s clear that you can _____.A． bring food into the lab | |
| B．enter the lab anytime | |
C．smel chemicals as you like | D．learn science directly in the lab |
| A．Before the Experiment |
| B．First Aid |
| C．During the Experiment |
| D．After the Experiment |
答案
小题1:A
小题1:C
小题1:C
小题1:D
小题1:B
解析
核心考点
试题【 Laboratory work is your chance to learn science firsthand. It can be fun but yo】；主要考察你对科普环保类等知识点的理解。[详细]
举一反三
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 make people unhappy, so you never express your real feelings. You’re quite shy and you aren’t very confident.
If you sleep on your stomach, you are a person who likes to keep secrets. You worry a lot and you’re always easily becoming sad. You never want to change your ideas, but you are satisfied with your life the way it is. You usually live for today not for tomorrow.
If you sleep on curled up (蜷缩), you are probably a very nervous person. You have a low opinion of yourself and often protect yourself from being hurt, so you are very defensive. You’re shy and you don’t usually like meeting people. You like to be on your own.
If you sleep on your side, you have usually got a well-balanced (平衡的) personality. You know your strengths and weaknesses. You’re usually careful. You have a confident personality. You sometimes feel worried, but you don’t often get unhappy. You always say what you think, even if it makes people angry.
小题1:You may find the passage in_____.
| A．a science magazine | B．a guide book |
| C．a sports newspaper | D．a story book |
| A．In the daytime. | B．At the beginning of sleep. |
| C．At night. | D．During the deep sleep. |
| A．on 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. |
Lana: I read a report. It said that Dr. Ian Wilmut successfully cloned a lamb* named Dolly from a grown-up sheep. So people call him the “father” of Dolly.
Tony: In fact, the word “clone” means to produce the “same” animal by taking cells* from a
grown-up one. I think, if we know how to do cloning, we need only to keep a small number
of sheep, cows or horses.
Lana: What’s more, these days some people even want to clone humans. They have asked: Can we
clone ourselves?
Tony: It seems interesting. But do you think it possible to do that?
Lana: No, impossible! First, I think we cannot clone a dead person, because the cells in his body are dead already.
Tony: Then can we clone a living person?
Lana: Again no! You might clone yourself one after another, but it is only a copy, not a real you. It is only something, not a “human”.
Tony: Well, you mean that it is not a real human.
Lana: True enough! I think Dr. Wilmut would most like to make better animals, and it has nothing to do with human cloning.
小题1:The word “clone” means_________________.
复制 B 克隆 C 抄袭 D 制造
小题2:Dolly was the name of _______.
A. the father of a sheep B. a famous scientist
C. . a grown-up sheep D a sheep that was cloned
小题3:Lana says Dr. Ian Wilmut is the “father” of Dolly. Here, she means __________.
Dr. Ian Wilmut was the first man to clone a sheep in his lab
Dr. Ian Wilmut gave Dolly a new life
Dr. Ian Wilmut took care of Dolly like a father
D. Dr. Ian Wilmut has a daughter whose name is Dolly
小题4: From the conversation, may be clone in our life.
A a tree B a person C an elephant D an orange
小题5:According to the conversation, we know about .
Scientists have successfully cloned humans.
Dr. Wilmut likes to do human cloning.
C. Cloned animals are better than humans.
D. Lana doesn’t think humans shouldn’t be cloned.
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 |
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. |
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