题目内容

（题文）—Do you know that Mrs. Obama came to China with her mother and two daughters?

—Yes. And it is their ______ visit to China.

A. one B. first

C. the first D. once

B 【解析】 试题句意：你知道奥巴马夫人和她的妈妈和两个女儿来中国了吗？是的，这是她们第一次来中国。根据题意“第一次”应用序数词，因空前有their，所以不用定冠词the，故选B。
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Which of the following signs means DANGEROUS?

A. B. C.

B 【解析】 句意：下面那个标志意味着危险？A.的意思是“禁止停车”；B.的意思是“危险”；C的意思是“重复使用，循环使用”.。根据句意，故选B。

Mary does well Geography, but sometimes she is careless.

A. at B. in C. for D. about

 B 【解析】 句意：玛丽地理学得很好，但有时她粗心大意。考查介词辨析题。for为了；about关于；at在，表位置或时刻；in在……方面。do well in在……做得好；根据句意语境，可知选B。

阅读短文，回答问题及翻译划线部分的句子。

Raisins(葡萄干) can be put in ice?cream，in chocolate bars，and in cookies…Our favorite snacks cannot be without raisins!

Have you ever thought about how people get raisins from full and juicy grapes？Dry them in the sun？Well，that's one way.But people from Xinjiang have another way.They make the best raisins in China.

People there build many “blockhouses(碉堡)” out of earth near a grape garden.①The best raisins are made in these blockhouses.

Many “blockhouses” are built on the hillside.They're usually three meters tall and are as big as the size of a classroom.

After picking the grapes，people put them on the shelves in these blockhouses.②__30_至___45___天之后，这些葡萄将会变成又软又甜的葡萄干。

1.Can our favorite snacks be without raisins according to the passage?

_____________________

2.Where are the best raisins in China made?

_____________________

3.How tall are the “blockhouses”？

_____________________

4.将划线①译成汉语。

_____________________

5.将划线②译成英语。

_____________________

 1.No，they can't. 2.They are made in Xinjiang. 3.They're usually three meters tall. 4.最好的葡萄干在这些“碉堡”里被制造出来。 5.Thirty to forty?five days later，the grapes will turn into soft and sweet raisins...

Life is full of surprises and you never know how things will turn out.

Sir John Gurdon is a good example of this. As a boy, he was told he was hopeless at science and was at bottom of his class. Now, aged 79，the very same Gurdon shared the 2012 Nobel Prize in Medicine with Japanese stem cell (干细胞) researcher Shinya Yamanaka.

Like so many scientists, Gurdon shows us where the power of curiosity and perseverance(坚持) can lead.

When he was 15 in 1948，Gurdon ranked last out of the 250 boys at his high school in biology and every other science subject. Gurdon’s high school science teacher even said that his dream of becoming a scientist was “quite ridiculous”.

In spite of his teacher’s criticisms(批评), Gurdon followed his curiosity and kept working hard. He went to the lab early and left later than anyone else. He experienced thousands of failures.

“My own belief is that we will, in the end，understand everything about how cells actually work，”Gurdon said.

In 1962, Gurdon took a cell from an adult frog and moved its genetic (基因的) information into an egg cell. The egg cell then grew into a clone of the adult frog. This technique later helped to create the sheep Dolly in 1996，the first cloned mammal(哺乳动物) in the world.

In 2006，Gurdon’s work was developed by Yamanaka to show that a sample(样本) of a person’s skin can be used to create stem cells. Using this technique, doctors can repair a patient’s heart after a heart attack.

“Luck favors the prepared mind,” Gurdon told the Nobel Prize Organization. “Ninety percent of the time things don’t work, but when they do, you have to seize(抓住) the chance.”

1.Who won the 2012 Nobel Prize in Medicine?

A. Sir John Gurdon

B. Shinya Yamanaka

C. Sir John Gurdon and Shinya Yamanaka

D. Gurdon’s science teacher

2.What does the underlined word “ridiculous” mean?

A. 荒谬的 B. 无畏的 C. 荒废的 D. 无知的

3.In what order are the following events mentioned in the passage.

a. create the sheep Dolly

b. take a cell from an adult frog

c. use a person’s skin to create stem cells

d. move a frog’s genetic information into an egg cell

e. grow into a clone of the adult frog

A. b-a-c-d-e B. b-d-e-a-c C. b-d-a-e-c D. b-c-d-a-e

4.According to the passage, which statement is TRUE?

A. Sheep Dolly was the first cloned animal in the world.

B. Gurdon ranked first at his high school in biology.

C. It’s impossible for the doctors to repair a patient’s heart after a heart attack.

D. According to the science teacher, Gurdon was not a gifted student.

5.What’s the main idea of the passage?

A. Ninety percent of the time things don’t work.

B. Luck favors the prepared mind.

C. Life is full of pleasure.

D. How to know cells actually work.

 1.C 2.A 3.B 4.D 5.B 【解析】这篇文章主要介绍一位诺贝尔医学奖获得者John Gurdon，当是一个男孩时，他被告诉在科学这一科毫无希望，他在班里倒数第一名。他在小时候受尽质疑，但是凭借着不放弃、勇往直前的精神最终获得成功。79岁，John Gurdon与日本干细胞（干细胞）研究员Shinya Yamanaka共享2012诺贝尔医学奖．最后告诉我们：...

The old farmer is counting ______ money and _______ cows he had.

A. the amount of, the number of B. an amount of, a number of

C. the number of, the amount of D. a number of , an amount of

 A 【解析】 句意：那位老农民正在数钱的数量和他拥有的牛的数量。the amount of…表示……的数量；a number of表示许多，大量；the number of…表示……的数目。根据题意，故选A。

We are already familiar with computers. They work for us at homes, in offices and in factories. We benefit(受益) a lot from the computers ,but at the same time, with the development of this high technology, it also caused a lot of trouble. One of them is the jobs’ problem.

Many people want to work, but it has become more difficult for people to find work in today’s work. Ma Yun’s unmanned supermarket appeared in 2017. It shows that more and more people will lose jobs even the simple job as a shop worker . The economy (经济) of the world needs to grow by 4% each year just to keep the old number of jobs for people. Often this is not possible, and so more people are out of work. Some people have no jobs now because new machines can do the work instead of many people in short time. Also, machines do not ask for more money and longer holiday. In all of the countries of the world, machines are taking work from people, not only in factories but also on the farms. One machine can often do the work as much as forty people. About 75,000 people are moving to the cities a day to look for jobs, but only 70% of them can find jobs.

1.It was _______ for people to find jobs today than before.

A. more difficult B. not possible C. easier

2.If the economy of the world grows by 4% each year, _______.

A. people will have no jobs B. people can still have jobs as before

C. only 4% of the people will have jobs

3.One machine can do as much work as _______.

A. 75,000 people B. 14 people in the world C. 40 people

4.If 75,000 people move to the cities a day to look for jobs, how many of them can find jobs?

A. 52,500 people. B. 3,500 people. C. About 75,000 people.

5.Where may this article come from?

A. A story book. B. A newspaper C. A novel.

 1.A 2.B 3.C 4.A 5.B 【解析】 电脑的出现为我们的生活带来了很大的好处，我们获益很多，但同时它也导致了一个问题，那就是由于电脑和机器可以代替人做很多的工作，所以很多人都失业了。 1.细节理解题。根据短文第二段中Many people want to work, but it has become more difficult for pe...

The girl ______ long black hair is Lily. She is pretty.

A. with B. at C. in

 A 【解析】 句意：这个有着黑色的长发的女孩是Lily，她非常漂亮。with有，带有；at在具体时刻或地点；in在…里面。这里用介词with表示“有，带有”，作后置定语，修饰名词The girl。故选A。

Parents put the things like knives and medicine away in the house to keep children safe.

A. may B. might C. can D. should

 D 【解析】 句意：家长应该把家里刀、药等之类的东西收起来放好，以保证孩子的安全。考查情态动词。A. may可以；B. might可能；C. can能；D. should应该。根据Parents put the things like knives and medicine away in the house to keep children safe.可知这是给家长的一种建议，表示建...

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