阅读理解     There are several advantages in planting trees: they firm the soil, soa

阅读理解     There are several advantages in planting trees: they firm the soil, soa

题型:同步题难度:来源:
阅读理解     There are several advantages in planting trees: they firm the soil, soak(渗透) up extra water and take
carbon dioxide out of the atmosphere. However, it now turns out that planting trees could add to global
warming. We all know that tree roots do a great job of keeping soil firmly on the ground and out of the
wind"s power. The problem is that some of the dust clouds play an important part in soaking up carbon
dioxide.
     Huge dust storms blow out over the oceans from dry parts of North Africa and Central Asia. Tons of
dust are lifted and left as a thin film over the ocean surface.
     Dust from China is carried east and left in the Pacific Ocean. If a tree planting programme there is
successful and the dust supply reduced, the net result may be that less carbon dioxide gets locked away
in the ocean.
     Andy, an environmental scientist has spent the past few years studying dust and says his work shows
clearly the complexity of the system. For this reason the need is to focus on cutting carbon dioxide giving
off rather than doing anything else.
     Robert, an American scientist, has shown that when native grassland areas are invaded by trees,
carbon is lost from the soil. "We are studying why the soil carbon disappears, but one theory is that trees
do a lot more of their growing above ground compared to grass, so less carbon goes directly into the soil
from trees." said Robert.
     In wet areas of the world, the gain from trees absorbing carbon dioxide above ground seems to be
outweighed by the loss of carbon from the soil below ground.
     Countries that plan to fight against global warming by planting trees may have to think again. Solutions
to environmental problems are often more complex than they first appear, and understanding the Earth"s
climate is a very great challenge.1. People usually hold the opinion that________.A. huge dust storms can destroy carbon dioxide
B. planting trees could reduce global warming
C. huge dust storms can destroy the oceans on the Earth
D. planting trees is the only way to control huge dust storms2. Andy, an environmental scientist, believes that________.A. environmental problems are more complex than expected
B. trees shouldn"t have been planted in dry places
C. dust plays a more important part than trees
D. carbon dioxide is harmful to everything3. Robert"s experiment proves that________.A. trees absorb more carbon than grass
B. carbon can turn grass into dust
C. less carbon can make trees grow faster
D. grassland areas should be covered by forests4. The best title for this passage is "________". A. The importance of planting trees
B. The dust clouds soak up carbon dioxide
C. Is it really useful to plant trees to reduce global warming?
D. Why the soil carbon disappears
答案
1-4: B A A C
举一反三
阅读理解     What would you think if I told you I could eat 40 percent more food than other people-eating boxes
of ice cream, bowls of noodles and plates of meat-all while losing weight?
     You might hate me, thinking I have one of those annoyingly good metabolisms(新陈代谢)that just
burn up fat the instant it enters my body. You might wonder if I have an intestinal(肠的)worm, or
perhaps an eating disorder. Or maybe you"d just shrug your shoulders and figure I have a rich fantasy
life.
     You"d be wrong.
     For my body to finish such a surprising task, I would have to be a mouse. Not just any mouse, but
one lucky enough to be involved in a new study at Baylor College of Medicine in Houston.
     After identifying an enzyme(酶)that allows fat to be stored in the body, scientists fed mice without
those enzymes, and found those mice were able to consume far more food than other mice-and still
weigh 10 to 15 percent less.
     Best of all, the mice that had no enzymes were in very good health, producing baby mice with no
problem and generally acting like any other mouse. That"s great news for obesity researchers, who think
that scientists may figure out a way to prevent the fat metabolizing(脂肪代谢)enzyme in humans and
control weight gain. And such a pill would be very exciting for many people who are struggling to get rid
of dangerous extra pounds.
     But don"t start planning any big dinner just yet. At this point, of course, any pill for humans is but a
twinkle(闪烁) in the eye of every medicine company"s CEO. More tests are to be made, and eventually
humans will be introduced in the test.
     But for now, unfortunately, control in diet is still the key.1. What does "such a surprising task" in Paragraph 4 refer to?A. Eating a lot of food while losing weight.
B. Burning up fat very quickly.
C. Controlling the diet.
D. Having a rich fantasy life.2. Why did the author say he/she had to be a mouse in Paragraph 4?A. Because a mouse can lose weight no matter how much it eats.
B. Because the weight losing tests were made on the mouse.
C. Because the mouse has a very good metabolism.
D. Because the author wants to try the food without the enzyme.3. In the experiment, the mice without those enzymes________.A. were in good condition  
B. put on weight
C. became weak  
D. could not have baby mice4. What does the author want to show through the last two paragraphs? A. You can be free of guilt when having big dinners.
B. Scientists cannot find the key to identifying the enzyme.
C. Don"t overeat before the test is made on humans.
D. It is unnecessary to control weight at present.
题型:同步题难度:| 查看答案
     Food is life; it gives us the nourishment (营养) we need to stay alive and be healthy.  __1__  
Brian Wansink, a professor at the University of Illinois, says we also eat certain foods because they
make us feel good, and remind us of happy memories. Wansink calls this kind of food comfort food.
For some people, ice cream is a comfort food. For others, a bowl of noodles soup makes them feel
good.  
     __2__   Professor Wansink believes that we connect food with important times, feelings, and people
in our lives. "When I was a child, my mother made a delicious soup; I loved it. __3__   And it helps me
feel better, " says one of Wansink’s coworkers.
     Do men and women choose different comfort foods? Wansink"s research at the University of Illinois
says "yes". In his study, the favorite comfort food for both men and women was ice cream. After this,
men usually preferred hot, savory (香的) foods like soup or noodles.   __4__   Men and women like to
eat comfort foods when they are happy, but women eat these foods more when they are sad or worried.  
     __5__   About 40 percent of the comfort foods in Wansink"s study were healthy main dishes or
soups and vegetables. It shows, says Wansink, that a comfort food can taste good and be good for you.  
A. Not all comfort food is junk food.
B. Where can we buy this sort of food?
C. Sweet foods are also their preference.
D. How does a food become a comfort food?
E. Usually, we eat because we are hungry or need energy.
F. Women like sweet things such as chocolate and cookies.
G. Now, I often have this kind of food when I am tired or worried.
题型:同步题难度:| 查看答案
阅读理解     In today"s world, almost everyone knows that air pollution and water pollution are harmful to people"s
health. However, not all know that noise is also a kind of pollution, and that is harmful to humans, too.
     People who work and live under noisy conditions usually become deaf. Today, however, scientists
believe that 10 percent of workers in Britain are being deafened by the noise where they work. Many of
the workers who print newspapers and books, and who weave cloth become deaf. Quite a few people
living near airports also become deaf. Recently it was discovered that many teenagers in America could hear no better than 65-year-old people, for these young people like to listen to "pop" music and most of
"pop" music is a kind of noise. Besides, noise produced by jet planes or machines will make people"s life
difficult and unpleasant, or even make people ill or even drive them mad. It is said that a continuous noise
of over 85 decibels can cause deafness.
     Nowadays the governments in many countries have made laws to reduce or control noise and make it
less than 85 decibels. In China, the government is trying to solve not only air and water pollution problems but also the noise pollution problem.1. In the world today, not every person knows               .      A. water pollution
B. air pollution
C. harmful pollution
D. noise pollution2. Today scientists believe that         .  A.90 percent of all the workers in Britain are not suffering from noise
B. 10 percent of all the workers in Britain are working in noisy places
C. 10 percent of all the workers in Britain are being deafened by the noise where they work
D.90 percent of all the workers are free from any noise3. Those who           usually have poorer hearing.      A. weave cloth
B. sell newspapers
C. like listening to music
D. often travel by plane4. According to the passage, a continuous noise            can make you deaf.       A. in working places
B. of less than 85 decibels
C. of over 85 decibels
D. of only 85 decibels
题型:同步题难度:| 查看答案
阅读理解.

     Drinking alcohol(酒精)is dangerous for kids and teens and sometimes for adults, too.
Alcohol is a drug, and it is the drug most abused by teens. Many kids have their first drink
at an early age, as young as 10 or 11 or even younger.
     They may have seen their parents drink or cool advertisements for beer and wine. It"s
easy for a kid to get the wrong message about alcohol. In TV commercials, drinking looks
like a lot of fun, you might see people drinking; and watching sports together or having
a big party.
     But alcoholisactuallya depressant (镆静剂 ).That means it"s a drug that slows down
or depresses the brain. Like many drugs, alcohol changes a person"s ability to think,
speak and see things as they really are.
     A person might lose his or her balance and have trouble walking properly. The person
might feel relaxed and happy and start crying or have an argument.
     When people drink too much,.They might hurt themselves or other people, especially
if they drive a car. Someone who drinks too much also might throw up and could wake
up the next day feeling awful. Drinking too much alcohol can lead to alcohol poisoning,
which can kill a person. Over time, someone who abuses alcohol can do serious damage
to his or her body. The liver, which removes poisons from the blood, is especially at risk."
     Because alcohol can cause such problems, teens shouldn"t be allowed to use alcohol,
and people who drink alcohol are not allowed to drive cars.

1. What is the best title of the passage?(Please answer within 5 words. )
__________________________________________________________________
2. Which sentence in the passage can be replaced by the following one? Many small
children, began, to drink alcohol when they were younger than, 10 years old.
________________________________________________________________
3. Please fill in the blank with proper words or phrases to complete the passage.
(Please answer within 10 words. )
________________________________________________________________
4. Which do you think is the most serious result of drinking alcohol? Why? (Please
answer within 30 words. )
__________________________________________________________________
5. Translate the underlined sentence in the fifth paragraph into Chinese.
__________________________________________________________________


题型:同步题难度:| 查看答案
阅读理解。

     Disposing(处理)of waste has been a problem since humans started producing it.As more
and more people choose to live close together in cities,the waste-disposal problem becomes
increasingly difficult.
During the eighteenth century,it was usual for several neighboring towns to get together to select
a faraway spot as a dump site.Residents or trash haulers(垃圾拖运者)would transport household
rubbish,rotted wood,and old possessions to the site.Periodically some of the trash was burned
and the rest was buried.The unpleasant sights and smells caused no problem because nobody
lived close by.
Factories,mills,and other industrial sites also had waste to be disposed of.Those located on rivers
often just dumped the unwanted remains into the water.Others built huge burners with chimneys
to deal with the problem.
     Several facts make these choices unacceptable to modern society.The first problem is space
Dumps,which are now called landfills,are most needed in heavily populated areas.Such areas
rarely have empty land suitable for this purpose.Property is either too expensive or too close to
residential neighborhoods.Long-distance trash hauling has been a common practice but once farm
areas are refusing to accept rubbish from elsewhere,cheap land within trucking distance of major city
areas is almost nonexistent.
     Awareness of pollution dangers has resulted in more strict rules of waste disposal.Pollution of
rivers,ground water,land and air is a price people can no longer pay to get rid of waste.The amount
of waste,however,continues to grow.
     Recycling efforts have become commonplace,and many towns require their people to take part.
Even the most efficient recycling programs,however,can hope to deal with only about 50 percent of a
city"s reusable waste.

1.The most suitable title for this passage would be ______.A.Places for Disposing Waste
B.Waste Pollution Dangers
C.Ways of Getting Rid of Waste
D.Waste Disposal Problem 2.During the 18th century,people disposed their waste in many ways EXCEPT for ______.A.burying it
B.recycling it  
C.burning it
D.throwing it into rivers 3.What can be inferred from the fourth paragraph?A.Farm areas accept waste from the city in modern society.
B.There is cheap land to bury waste in modern society.
C.It is difficult to find space to bury waste in modern society.
D.Ways to deal with waste in modern society stay the same.4.The main purpose of writing this article is to ______.A.draw people"s attention to waste management
B.warn people of the pollution dangers we are facing
C.call on people to take part in recycling programs
D.tell people a better way to get rid of the waste
题型:新疆自治区模拟题难度:| 查看答案
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