题目
题型:同步题难度:来源:
Scientists are trying to make the deserts into good land again. They want to
bring water to the deserts, so people can live and grow food there. They are
learning a lot about the deserts. But more and more of the earth are becoming
deserts all the time. Scientists may not be able to change the deserts in time.
Scientists think that people make deserts. People are doing bad things to the
earth. (1)Some places on the earth do not get very much rain. But they still do
not become deserts. This is because some green plants are growing there. Small
green plants and grass are very important to dry places. Plants do not let the hot
sun make the earth even drier. Plants do not let the wind blow the soil away.
(2)When a little bit of rain falls, the plants hold the water. Without plants, the
land can become a desert much more easily.
2.
4. Why is more and more land becoming deserts while scientists are trying to
make the deserts into good land?
5. Why are small green plants and grass important to dry places?
答案
2. 当有少量的雨水降落时,这些植物保持住这些雨水,没有植物,土地容易沙漠化。
3. No, he/she doesn"t think so.Because more and more land is becoming deserts all the time.
4. Because people are doing bad things to the earth.
5. Because they don"t let the sun make the earth drier, don"t let the wind blow the soil away and hold the
rain.
(答案不唯一)
核心考点
试题【任务型阅读。阅读短文,并根据短文内容回答问题。 Why is more and more land becoming deserts? Scientists】;主要考察你对科普环保类等知识点的理解。[详细]
举一反三
Europe, Germany (德国) and northern European countries work very hard to
improve the environment. The people in Germany put their rubbish into different
bags-paper in one bag, plastic in another bag, etc. Therub- bish is then taken
away and, if possible, recycled(回收) There are laws that do not allow people
to burn too much coal.
In the 1970s, as people learned more about environmental problems, the
"Green" movement (运动) began and soon spread all over Europe. The "Green"
movement tries to get governments to protect the environment. It collects
information about how industry is damaging (破坏) the environment and tells
newspapers.
started to protect the environment. By now more than l, 000 cities around the world have had a No Car
Day.
The first No Car Day in China was in Chengdu in 2001. Other cities, including-Taipei, Shanghai and
Wuhan, also support(支持)the day.
In Beijing, more and more people are joining in the ac- tivity. It asks drivers to leave their cars at
home for one day each month and walk or ride a bike to work. It also calls on Beijingers not to use cars
on June 5 (World Environment Day). The slogan(口号) for the day is, "If we drive for one less day, we
can have one more nice day. "So far, more than 200, 000 drivers have shown their support. "We can"t
control the weather, but we can choose not to drive, " said Wu Zonghua, a car club chairman. Beijing is
trying to have 238 blue sky days this year. In the first quar- ter of this year, Beijing only had 52 blue sky
days. This was 11 days less than the number for the same period last year. Much of the dust (灰尘)
comes from the desert (沙漠), but cars cause most of the air pollution(污染). We must do more for
No Car Day.
B. four
C. five
D. six
B. to enjoy having a day off
C. to leave their cars at home for repair
D. to ride a bike or walk instead of driving to work
last year in Beijing.
B. 63
C. 41
D. 238
B. dust
C. weather
D. rubbish
B. people will have one more World Environment Day each month
C. more and more people won"t drive on No Car Day in Beijing
D. more people in the world won"t drive any more
years. It could be getting warmer on its own, but many scientists think that people
are making the Earth warmer by making a greenhouse effect (湿室效应).The
greenhouse effect is important. Without it, the Earth would not be warm enough
for us to live on. But just a little warmer than it is now could cause problems for
humans, plants and animals.
Many of the things we do every day can change the Earth"s temperature by
sending greenhouse gases (废气)into the air. We send greenhouse gases into the
air when we watch TV, turn on lights, dry hair, play video games, wash or dry
our clothes or drive cars. The rubbish (waste) from factories and homes also
produces greenhouse gases.
Even a small change in temperature can affect (影响)our weather. This can
cause changes in the sea levels, the air, flooding and our fresh water.
The change in the temperature can also cause changes in the living places
for animals and plants, endangering many animals.
Global warming (全球变暖)is a big problem, and every little bit we do
can help. We can save electricity. We can save energy in other ways such as by
taking buses or walking rather than driving cars. We can recycle to reduce the
rubbish and save natural resources such as trees, oil and metals. We can buy
products that don"t do bad to the environment and we can turn to solar energy.
Remember the little bit that you do will bring a better world.
B. Walking to school.
C. Driving a car.
D. Watching TV.
realize _____.
B. the earth is getting warmer in 100 years
C. the greenhouse effect is important
D. humans are making the earth warmer
B. be safer
C. have a cleaner earth
D. have a better world
B. Paragraph 3
C. Paragraph 4
D. Paragraph 5
B. we don"t need to do anything
C. we can do something to help
D. we can do something to stop it
Many people like to __1__ (观看) others play sport games. They buy tickets or turn on their TV set
to watch the games. They often __2__ (感到) very very happy when "their" player or team wins.
People play different games in winter and summer. Summer is __3__ (有利于) swimming. And in
winter people often go skating.
Some sports are very interesting and people everywhere are in them. __4__ (例如), football is very
popular. In China most people, men, women, boys and girls like to watch football games. They often
__5__(谈论) it. Some people often __6__ (踢足球). Running and jumping began __7__ (很久,很久
以前). But basketball and volleyball are rather new. People began to play them __8__ (不久以前).
And people are starting new sports or games all the time. Water skiing is one of the __9__ (最新的).
People from __10__ (不同的国家) may not be able to understand each other, but after a game
they often become friends.
animals lived beside the water, which was full of fish. Now there are few birds, animals, and fish.
The lake water is polluted (污染的). It is in a colour of dirty brown, and it is filled with strange
plants.
How does this happen? First we must think about how water gets into Lake Ponkapog. When
it rains, water comes into the lake from all around. In the past there were forests all around Lake
Ponkapog so the rain water was clean.
Now there are many homes around the lake. People often use chemicals (化学品) in their
gardens. They use other chemicals inside their houses for cleaning or killing insects (昆虫). There
are also many businesses. Businesses use chemicals in their machines or shops. Other chemicals
fall onto the ground from cars or trucks. When it rains, the rain water picks up all the chemicals
from homes and businesses and then carries them into the lake. They pollute the water and kill
the animals.
Boats on the lake are also a problem. Lake Ponkapog is a popular place for motorboats. But
oil and gas (油和汽) from boats often get into the lake. So more bad chemicals go into the water
this way.
People in Hartwell are worried. They love their lake and want to save it. Will it possible? A
dean lake must have dean rainwater going into it. Clean rainwater is possible only if people are
more careful about chemicals at home and at work. They must also be more careful about gas
and oil and other chemicals on the ground. And they mustn"t use motorboats any more on the
lake. All these may change people"s lives. Only then can Lake Ponkapog he a beautiful, clean
lake again.
B. rain
C. birds
D. fish
B. can help the animals
C. are good for the lake
D. get into the rainwater
3. Cleaner rainwater will mean ______.
B. more dirty things in the lake
C. a cleaner lake
D. a dirtier lake
B. use less water
C. grow fewer plants in the gardens
D. use more motorboats on the lake
5. The passage is about ______.
B. why the water is dirty in Lake Ponkapog
C. clean rainwater
D. dirty lakes
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