游客
题文

A small cloud moves slowly through the air in a hospital operating room (手术室).In the room a patient with cancer(癌症),lies on a table.The cloud is all around the patient,covering her body and filling her lungs(肺).The cloud is not smoke.It is made of millions of nano﹣robots(纳米机器人).These tiny robots move from cell (细胞) to cell in the patient's body,killing the cancer.

    Fighting cancer with nano﹣robots is only an idea today,but scientists say that it could be possible in the future.Using nano﹣robots for good purposes such as fighting the illness or repairing the environment may be the way to many of today's problems.

    However,nano﹣robots could be a dangerous risk as well.Because nano﹣robots are so tiny,they will have to work in large teams of many thousands to many millions.For this reason,nano﹣robots will have to be programmed(被编程)to build themselves.Scientists will not have the ability to build millions of nano﹣robots one by one.

    This ability to re﹣produce is making some scientists worried.What will happen if something goes wrong in the programming?Quite a lot of crazy nano﹣robots would be far worse than any illness.Some people think that if they get out of control,nano﹣robots could make the Earth gone.

    What should be done?Should we continue researching nano﹣robots or should we search for other methods?This is one of the many difficult decisions that we have to make in the future.

(1)What is the cloud in the passage?    

A.Smoke in the air.

B.Millions of nano﹣robots.

C.Something full of drops of water.

D.Clothes to cover a patient.

(2)What does the underlined word it in Paragraph 2 refer to(指代)?    

A.Fighting cancer with nano﹣robots.

B.Moving from cell to cell.

C.Killing the cancer.

D.Repairing the environment.

(3)Which of the following is NOT the reason why some scientists are worried about using nano﹣robots?    

A.Nano﹣robots have the ability to build themselves.

B.Something may go wrong in the programming.

C.Scientists have to build millions of nano﹣robots one by one.

D.Nano﹣robots in large teams may be out of control.

(4)What does the writer think of using nano﹣robots in the future?    

A.He agrees to the idea.

B.He disagrees to the idea.

C.He doesn't talk about his own opinion.

D.He is crazy about it.

(5)What is the best title?    

A.Future Robots

B.The Ways to Fight Cancer

C.Nano﹣robots in Use

D.A Cloud of Hope and Danger

科目 英语   题型 阅读理解   难度 中等
知识点: 判断推理 新闻报道类阅读 内容归纳 文中细节
登录免费查看答案和解析
相关试题

Birthdays are celebrated(庆祝)all over the world. Some ways to celebrate birthdays are rather similar from county to country: candles, cakes, and birthday wishes. But there are also different ways to celebrate birthdays. Here are a few:

When someone is having a birthday in Denmark, you can see _____ outside the window.

A.flowers B.presents C.a flag D.a chair

In _________ flowers are put on the chair of the birthday child.

A.Japan B.Denmark C.India D.Holland

In _______, only birthday children wear colored clothes to school.

A.India B.Holland C.Denmark D.Japan

In Japan, the birthday is more important for boys when they are ________.

A.15 B.7 C.5 D.3

The passage is mainly about __________.

A.similar ways of celebrating birthdays in some countries
B.different ways of celebrating birthdays in some countries
C.how to celebrate the birthdays.
D.Birthdays are celebrated all over the world in the same way.

Ticket Prices for Shanghai Expo
Time
Types
Pre-sale(预售)Ⅰ
Mar. 27,2009
~Jun. 30,2009
Pre-sale Ⅱ
Jul. 1,2009
~Dec. 31,2009
Pre-sale Ⅲ
Jan. 1,2010
~Apr. 30,2010
Expo Session(期间)May. 1,2010
~Oct. 31,2010
Peak Day Ticket
(指定日门票)
¥170
¥180
¥190
¥200
Standard Day Ticket
(平日门票)
¥130
¥140
¥150
¥160
3-Day Ticket
(无)
¥400
7-Day Ticket
¥900
Evening Ticket
N/A
¥90






If Joe wanted to buy the cheapest ticket for Peak Day,he could book(预定)one during

A.Pre - sale Ⅰ B.Pre – sale Ⅱ
C.Pre – sale Ⅲ D.Expo Session

On March 1,2010,Sue bought two Standard Day tickets for her parents. She paidfor
them.

A.¥380 B.¥300 C.¥260 D.¥180

It cost Thomas ¥160 to get a ticket for Standard Day.He probably bought it on

A.April 23,2009 B.August l,2009
C.February 2,2010 D.May 20,2010

Kathy spent 900 yuan on a ticket for Shanghai Expo.Her visit can lastdays.

A.one B.three C.seven D.ten

Visitors to Shanghai Expo could buytickets only after May 1,2010.

A.morning B.afternoon C.evening D.Midnight

Americans with small families own a small car or a large one. If both parents are working, they usually have two cars. When the family is large, one of the cars is sold and they will buy a van(住房汽车)
  A small car can hold(容纳)four persons and a large car can hold six persons but it is very crowded(拥挤). A van hold seven persons easily, so a family three children could ask their grandparents to go on a holiday travel They could all travel together.
  Mr.Hagen and his wife had a third child last year. This made them sell a second car and bus a van. Their children sixth and seventh seat are used to put other things, for a family of five must carry many suitcases(衣箱)when they travel. When they arrive at their grandparents’home , the suitcases are brought into the two seats can then carry the grandparents.
  Americans call vans motor homes. A motor home is always used for holidays. When a family are traveling to the mountains or to the seaside, they can live in their motor home for a few days or to the seaside, they can live in their motor home for a few days or weeks. All the members of a big family can enjoy a happier life when they are traveling together. That is why motor homes have become very popular. In America there are many parks for motor homes.
From the passage, a van is also called ____________.

A.a motor car B.a motor home
C.a motorbike  D.a big truck

Before Mr. Hagen and his wife bought a van, they__________.

A.sold their old house
B.moved to their grandparents’house
C.built a new place for a van
D.sold their second car

A motor home is usually owned by a family with__________.

A.a baby  B.much money
C.more than two children D.interest in vans

Americans usually use motor homer____________.

A.to travel with all the family members of holiday
B.to do some shopping with all the family members
C.to visit their grandparents at weekends
D.to drive their children to school every day

Motor homes have become popular because___________.

A.they can take people to another city when people are free
B.they can let families have a happier life when they go out for their holidays
C.some people think motor homes are cheap
D.big families can put more things in motor homes

TV PROGRAMMES
Channel 1
Channel 2
18:00 Around China
18:30 Children’s programme
19:00 News
19:30 Weather report
19:40 Around the world
20:10 TV play: Sisters
21:00 English for today
21:15 Popular music
21:55 Talk show
17:45 Computers today
18:10 Foreign arts
18:30 English classroom
19:00 Animal world
19:25 China’99
20:20 Sports
21:00 TV play: Guo Lanying
21:45 English news
22:06 On TV next week


If you want to watch a football game, the best programme for you would be _____.

A.TV play B.Sports
C.Around the world D.Talk show

The programme of ______ will let you know much about western countries.

A.Sisters B.Around China
C.Around the world D.On TV next week

If you want to know something about tigers, elephants and monkeys, the best programme for you is __________.

A.Around China B.Animal world
C.TV play D.Foreign arts

English classroom is a programme that _________.

A.lets you know something about classrooms
B.tells you something about students
C.lets you know something about school life
D.teaches you English

The programme at the end of Channel 2 means _______ on TV next week.

A.news B.programme C.people D.Places

根据短文内容,从A、B、C、D四个选项中选择一个最佳答案,将字母标号写在答题纸的相应位置上.(共10分,每小题1分)
Children like to copy what they hear. They copy their parents, their friends and even the TV. This teaches them how to _1_ the language. Copying is also a good way for students to learn a second language. When you _2_ foreigners speak English, repeat what they say as well as you can.
Children don't practice grammar,, but use the language to 3_ things that they are interested in. They don't _4 their vocabulary or poor grammar. They find ways to express themselves, and they do it successfully.
Students of English schools also pay attention to communication (交流). Look for _5_ to talk with people in English. If you can't find a _6 to talk to, talk with other students in English _7. Start an English discussion group and talk about music, movies or anything that 8 you.
Don't worry about _9, what you want is to learn how to communicate easily. Remember that you can communicate successfully even with _10_small vocabulary.



A.tell B.read C.write D.speak


A.listen to B.listen C.hear of D.hear


A.take exams B.talk with C.talk about D.tell to


A.look like B.worry about C.take care of D.look after


A.places B.questions C.chances D.changes


A.video B.foreigner C.film D.people


A.again B.instead C.only D.instead of


A.interests B.improves C.allows D.troubles


A.exams B.looking on C.making mistakes D.books


A.an B.the C./ D.a

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号