, we would have taken raincoats with us. A. Had we known B.We had known it C. If we were known D.If we know 题目和参考答案——青夏教育精英家教网—

题目内容

___ , we would have taken raincoats with us.

A. Had we known B.We had known it C. If we were known D.If we know

解析:

省略了if的虚拟条件句要倒装。此句是与过去事实相反的虚拟语气。

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短文改错（共10小题，每小题1分，满分10分）

　　假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线,（）并在该词下面写出修改后的词。

注意：1.每处错误及修改均仅限一词;

　　　2.只允许修改10处，多者（从第11处起）不计分。

June 12, Sunday, Fine

Today is Sunday. I didn't get up early as usually. In the morning after I finished my home-work, I do some washing. Then I telephoned one of my classmate and invited him to see a film. And unfortunately, when we got to the cinema at 3:00 p.m. we found all the tickets had sold out. So we went to our school and played the football. After that, when we were about to go home, we saw our English teacher, Mr. Wang, came into the school gate. He told us we had made many progress in English this term. He also suggested that we should read more and wrote more. We promised that we would take his advices.

Like distance runners on a measured course，all of us will move through time in a roughly predictable pattern．

In the first stage of our lives，we develop and grow, reaching toward the top of physical vitality(活力)．

After we grow up，however, the body begins a process of gradually wearing out．

A new awareness of physical fitness may help lengthen our years of health and vitality，yet nothing we do will work to stop the unavoidable force of aging．

Most of the changes of aging take place deep inside the body．The lungs become less able to take in oxygen．Powerful muscles gradually lose their strength．The heart loses power and pumps less blood．Bones grow easier to break．

Finally, we meet a stress，a stress that is greater than our physical resistance．Often，it is only a minor accident or chance infection(a disease caused by virus)，but this time，it brings life to an end．

In 1932，a classic experiment nearly doubled the lifetime of rats，simply by cutting back the calories in their diet The reason for the effect was then unknown．

Today, at the University of California at Berkley, Dr．Paul Seagle has also greatly lengthened the normal lifetime of rats．The result was achieved through a special protein limited diet，which had a great effect on the chemistry of the brain．Seagle showed that within the brain，specific chemicals control many of the signals that influence aging．By changing that chemical balance，the clock of aging can be reset．

For the first time, the mystery of why we age is being seriously challenged．Scientists in many fields are now making striking and far-reaching discoveries．

An average lifetime lasts 75 years，yet in each of us lies a potential for a longer life．If we could keep the vitality and resistance to disease that we have at age twenty, we would live for 800 years．

1.What does the underlined word “it” refer to?

A．Physical vitality． B．Stress． C．Aging． D．Physical resistance．

2.Which of the following is not a change of aging?

A．People gradually lose their muscle strength．

B．Bones tend to break more easily．

C．The heart loses power and pumps less blood．

D．The lungs become unable to take in oxygen．zxxk

3.The author believes the following except that ．

A．human's life pattern is predictable

B．physical fitness can't stop the force of aging

C．human's lifetime will last longer than 75 years

D．all of the changes of aging take place deep inside the body

4.How did Dr．Paul Seagle lengthen the lifetime of rats in his experiment?

A．By keeping their physical fitness． B．By cutting the calories in their diet．

C．By resetting their clock of aging． D．By limiting the protein in their diet．

5.What is probably the best title for the article?

A．Two Great Experiments

B．The Mystery of Human Life

C．The Breakthrough in the Study of Aging

D．Ways to lengthen Human Life

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项

Health is the most important thing in the world. Nothing is more important than health. If we take away our money, houses, cars or even our clothes, we can still survive. 71 That is why we always try to eat in a healthy way and exercise regularly.

How can we keep healthy？In order to eat healthily, I usually avoid eating food high in fat, like French fries or cookies, which are junk foods. 72 I eat a lot of vegetables and fresh fruit which are full of vitamins.

73 Taking exercise every day helps us build a strong body. Regular exercise is an important part of keeping me healthy.

What’s more, I think friends are an important part of one’s health. 74 I always feel better when I am with friends than when I am alone. When I am with my friends, I always laugh. Laughing is also an important part of health. It is good to stay with my friends.

By eating properly and exercising regularly, I can keep my body at a proper weight and keep healthy. By spending time with my friends, I can keep my mind as well as my body happy. These things sound easy to do, but not many people can manage them. 75

A．On the other hand, doing exercise is very important．

B．There are some people who like staying alone, but they keep healthy．

C．Many studies show that people with a range of social contacts don’t get sick．

D．But if our health was taken away, it is certain that we would surely die．

E．I only eat little meat．

F．I think a strong will is necessary if we want to keep healthy．

G．Some people appear fat because they often eat too much．

When I was in medical college, I went camping with some of my friends on the seaside. After ____16____(arrive) there, we rented a room and left our luggage there. The sea and the weather were beautiful, ____17____ we finished lunch and then decided to rent a boat.

We started to row, but about one mile out, the weather suddenly changed. ___18____ the weather was not good, we didn’t want to give up, but finally my friends and I agreed that we should go back. We tried to change the boat’s direction, but ___19____oarlock(桨) broke. Therefore, we were unable to turn back. What we could do was wait ___20___ help.

The sea changed a lot, the waves got very high, and the boat began to shake like a cradle(摇篮). One of my friends started to cry ; ____21___ started to feel sick. There hours passed, and nobody came to help us. We were just praying. _____22_____(fortunate), after five long hours of waiting, two big boats came to rescue ____23___ and we escaped. If they ____24____(not come) to get us, we would have crossed the border between Turkey and Greece because the border was very close.

This story is ____25____(excite) story of my life because we could have died, but luck was with us and we escaped.

As I understand, if scientists produced a human clone, there would be a great risk of it having a disease. Nobody seems to understand the ageing process of a clone. It would be terrible if a baby was the age of its parent at 31 . Its cells would grow old fast and it would die young. 32 until the technique is perfectly safe, it should be 33 .

I'd love to have a clone of 34 . I often wish I had a twin sister, someone who 35 me in everything. So why not a clone? Well, the idea 36 be fun but I'm not sure if it would be 37 . I think we would be playing with fire if we let scientists go ahead with 38 cloning. There are so many 39

involved that all research in this area should be strictly controlled.

There are so many arguments 40 cloning that it is difficult to get anyone to consider the possible benefits. I am 41 that it is a technique which could be beneficial. The most obvious use would be for childless 42 . They would be able to have babies with their own genetic material. I don't see what's wrong with that.

Imagine a child 43 up knowing that his or her mother is really a sister or a brother. The emotional 44 on the child would be 45 . Or a child who was cloned from a dead brother or sister. What kind of emotional pressure would they feel, knowing they were made as a replacement for another? The whole idea

46 me!

It's all very good to ban human cloning but scientists should be allowed to 47

research. If they don't, we may 48 important benefits for our society, such as producing body organs. A clone is an 49 copy of a person with the same gene. Therefore, it is the 50 donor for an organ(器官) transplant.

A．home

B．lab

C．process

D．birth

A．Besides

B．Therefore

C．Although

D．Unless

A．banned

B．allowed

C．encouraged

D．forced

A．itself

B．herself

C．myself

D．yourself

A．overlooked

B．contradicted

C．accumulated

D．resembled

A．may

B．must

C．can

D．shall

A．messy

B．safe

C．swift

D．awkward

A．human

B．animal

C．plant

D．pet

A．obligations

B．regulations

C．formulas

D．risks

10.

A．against

B．with

C．for

D．amid

11.

A．vanished

B．convinced

C．violated

D．teased

12.

A．couples

B．heroines

C．dwarves

D．elves

13.

A．picking

B．looking

C．getting

D．growing

14.

A．pressure

B．sample

C．privilege

D．ambition

15.

A．unsinkable

B．unimaginable

C．unbearable

D．unthinkable

16.

A．scratches

B．terrifies

C．entices

D．confronts

17.

A．continue

B．predict

C．tear

D．mention

18.

A．chase

B．contrast

C．cure

D．miss

19.

A．handy

B．identical

C．contradictory

D．transparent

20.

A．ideal

B．voluntary

C．vacant

D．inquisitive

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