题目内容
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[单选题]
We are now enclosing our spring catalogue and price list_______CIF Shanghai.
A.quoted
B.to quote
C.having quoted
D.quoting
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.quoted
B.to quote
C.having quoted
D.quoting
如果结果不匹配，请 联系老师 获取答案
更多“We are now enclosing our sprin…”相关的问题
A.making
B.make
C.made
D.to make
A.looking into
B.approaching
C.exploring
D.descending
Gmail(Google Email)Notice
Subject： Your Gmail account has bean inactive for a long time
From “The Gmail Team”gmail-noreply@gmail,com
Time2008-06-26 14：12：15
To wanghaiyan@163.com
Hi there，
We’ve noticed that you haven’t used your Gmail account，wanghaiyan@ gmail.com，for quite some time.In order to make Gmail better for our users，we’ve added a lot of things in the last few months and we hope you’ll want to start using your account again.
Stop worrying about storage(存储量).Your account now has 5000 megabytes(兆字节)of free storage and our plan is to continue growing your storage by giving you more space as we are able.
The Gmail interface(界面)is now available in 12 languages.If you don’t see the language you want on this list.Look for it in the future because we’re going to keep adding more.
We’re still working hard every day to build for you the best email service around.But to keep Gmail great for our users.we may have to close inactive accounts after 9 months.So，we hope you’11 give us another chance.To log in(登录)to your Gmail account，just visit：http：//gmail,google,com.
Thanks.
The Gmail Team
41.Why does the Gmail Team write to the Gmail user？
Because the user hasn’t used his/her Gmail_______for quite some time.
42.What kind of storage the user’s account now has？
It now has 5，000 megabytes of_________________________storage.
43.How many languages are available in the Gmail interface now？
__________________________________________________________.
44.What may happen to the user’s account if it is inactive for 9 months？
The Gmail team may have to_______________the user’s account.
45.What is the purpose of the Gmail team in sending this email？
They hope the user will______________the account.
Scientists have found that the cause of this strange weather is that the air circulation pattern has changed and is now more variable than earlier in the twentieth century. This means that different regions of the world get long spells (持续时间) of the same type of weather, whether hot , cold, wet or windy.
However, weather experts have different views about why this has happened. One theory is that the temperature of the sea has increased. Another is that man’s activities on earth have disturbed the balance of nature.
Whatever the cause, the economics of many countries in the world depend upon the weather. And until we know exactly what effect man’s activities are having on the weather, we cannot make changes which might help. So for the moment the only answer is …wait and see!
26. Which of the following statements is TRUE according to the first paragraph？
A. We have never predicted the weather.
B. Man is now able to control the weather.
C. Strange weather has appeared only in some North American countries.
D. It has always been impossible for man to predict the weather accurately.
27. The strange weather patterns on the earth can he best described as ________.
A. steady and balanced C. likely to cause serious disasters
B. changeable but predictable D. unpredictable but favorable to man
28. The word “affecting” in Paragraph 1 can be replaced by ________.
A. yielding good crops in C. causing few losses in
B. having harmful effects on D. producing desired effects on
29. We can learn from Paragraph 2 that ________.
A. weather patterns are similar in different regions of the world
B. the air circulation pattern remains unchanged in the last century
C. our weather depends on the changes in the air circulation pattern
D. it is possible to predict weather patterns over a long period of time
30. It can be learned from this passage that ________.
A. scientists have similar opinions about the changing weather
B. no one is sure about the cause of the changing weather
C. cutting down forests has affected the climate
D. the weather will become worse in the future
Biologists today don’t expect that anyone will find a magical fountain of youth.Growing older is a natural part of the life cycle that can’t be reversed.As human beings grow older, organs such as the heart and lungs may stop functioning properly.Sight and hearing may become weak.And the human body becomes more likely to come down with serious illnesses from which it cannot recover.
Considered together, changes that bring about the decline of an organism are called aging.Because of aging, many biologists believe that there may be a maximum age limit to which even the healthiest organisms can live.For human beings, this maximum age limit is about 110 years.
Perhaps the most important thing that you can learn from your study of human biology is that you have a lot of control over the aging process in your own life.In fact, within our control are many physical and mental factors that have much to do with aging.For example, each of us, as recent research indicates, can do many things to help prevent heart and vessel disease, which causes half the death each year in the United States.We can avoid eating a lot of fatty meat.Eating too much of these types of animal fats can lead to the clogging and hardening of blood vessels.We can cut back on smoking and hopefully quit entirely.We can limit the amount of alcohol we drink and the amount of sugar we eat.We can exercise regularly and strengthen the heart and other organs.And we can remember to take time out each day for ourselves, time just relax.Exercise, recreation and relaxation all reduce stress – inner tension that is hard on all body organs.
One final thing we can do is to try to keep aware of advances made in health education.Information is often available free of charge from health clinics or schools.
1.Which of the following is the leading cause of death in the United States？
A.Heart disease.
B.Cancer
C.Alcohol
D.Smoking
2.What happens as people grow older？
A.They dream of a magic pill to help them live a happy and long life
B.They come down with serious illnesses
C.Their organs become weak and may stop working properly
D.Their blood vessels become clogged
3.In the opinion of biologists, _________.
A.the aging process can be reversed
B.the aging process can be controlled and slowed down
C.the aging process can be got rid of
D.the aging process can go beyond its limit
4.We can slow down the weakening of all our body organs by ______.
A.not eating animal fat
B.limiting drinking and smoking
C.exercise, recreation and relaxation to reduce stress
D.preventing the clogging and hardening of blood vessels
5.Besides physical and mental factors, which of the following also contributes to living a long and healthy life according tot the passage？
A.Health education
B.Traditional medicine
C.artificial organs
D.The invention of magic pills
Currently there are some 20,000 chemicals in use, but the scientists only have detailed information around 1,000 of them.To see the advantages of GM food you have only to consider the recent press revelation that the average lettuce receives eleven pesticide applications before it reaches the supermarket shelf.I’m sure chemicals and their role in disease will become a big issue in the 21st century as the population of the developed world worries increasingly about its health.
The reason GM food will not go away is that we need a three-fold increase in food production by the year 2050 to keep pace with the world’s predicted population growth to ten or eleven billion.It’s not just a question of more mouths to feed either.What is often forgotten is that all these extra people will take up space, reducing the overall land available for agriculture.
The world has 800 million hungry people.Until now, food supplies have been increased by improved varieties, pesticides and artificial fertilizers: the green revolution.Now we’re on the edge of a new one: a genetic revolution.
It may well be that in the long term it is the developing world that benefits most from GM food.It is true that for the next years or so GM crops may be too expensive.
6. According to the passage, food supplies have been increased by all the following except_____________.
A.pesticides
B.artificial fertilizers
C.improved varieties
D.transportation
7.How many chemicals are still less familiar to the scientists？()
A.20,000.
B.1,000
C.19,000
D.21,000.
8.Why will people prefer GM food in the future？()
A.Because it uses less pesticides.
B.Because it is much cheaper.
C.Because the production is increased.
D.Because it is organic food.
9.Which of the following is NOT true？()
A.By 2050, the world population will grow to ten or eleven billion.
B.In the 21st century, GM food will take the place of conventional food.
C.More and more people will reduce the overall land available for farming.
D.More and more people will consume more food and occupy more space.
10.The author’s attitude towards GM food is _______.
A.negative
B.positive
C.critical
D.uncertain
A.where
B.of whom
C.that
D.whose
无向图的连通分量
A.深度优先
procedure dfs (now,color: integer);
