There is no doubt that many parents want to mold (塑造)their child to be better, faster, smarter and more skilled. Even though human parents can’t do that, a robot that builds its own children can. Scientists at the University of Cambridge in England have created a mother robot that not only creates its own children, but tests out their performance.

The mother robot analyzes(分析)the performance of each of the “children” it creates, and passes down good characters to the next generation. For example, as the mother creates them and puts them to work, she measures how they’re behaving, and she uses data from this behavior to create the next generation of robots.

The mother robot can actually build hundreds of child robots and see the performance of these child robots. And if their performance is good, keep their design for the next generation. And if bad, just let it go.

“We program the robots based on some functions that define(规定)the reward the robots are going to get, depending on the construction that they make. They cannot change their own reward. For the child robot, the longer the distance the robot walks, the better the reward it receives,” said Fumiya Iida, the lead researcher.

After several generations, the “children” were running twice as fast.

“The mother robot produced 500 robots to see which one is good and which one is bad,” said Iida.

The researchers believe that the machines can be used in a car factory, for example, where robot cameras examine each ear in production line, find out any mistakes, and then design a better car.

1.What is special about the mother robot?

A. It can analyze data

B. It can create child robots

C. It’s smarter than human mothers

D. It can build and improve its own children.

2.How does the mother robot mold her own children to be better?

A. It teachers them how to behave better.

B. It reprograms the bad ones after analyzing their performance

C. It copies hundreds of child robots and then chooses the best ones.

D. It keeps the good characters for the next generation to create a better robot.

3.What is the key point in influencing the child robot to receive a reward?

A. Size B. Distance.

C. Behavior D. Speed.

1.市政府对治理污染河流充满自信。

The city government ________ __________ ________ controlling the polluted rivers.

2.说起我的理想, 我只想碰碰运气,在家乡开个公司。

As to my dream, I just want to _________ __________ _________ and set up my own company in my hometown.

3.老张可能不会乘高铁去杭州,因为他喜欢自己开车。(运用情态动词)

Mr. Zhang ________ ________ ________ the high-speed train for Hangzhou, for he likes

driving his own car around.

4.我妈妈答应来参加我的毕业典礼的, 可是到现在她都没有到,真让人着急啊!

My mum promised to attend my graduation ceremony, but by now she _______ _______ ______, which is really worrying.

5.下周举行的大会是为了纪念他们的祖先100年前来到这个村庄。

The meeting that will take place next week is ________ ________ _______ their ancestors’ arrival in the village 100 years ago.

6.如果你不为自己做过的事情道歉的话,他们是不会放过你的。

They won’t let you ________ ________ ________ it unless you say sorry for what you have done.

7.我仍然对日本是否是个独立的国家持有怀疑。

I still have the doubt of ________ Japan is ________ ________ country.

8.昨天的天气很好,我本来不用带伞的。

The weather turned out to be fine yesterday. I ________ ________ ________ the umbrella with me.

9.三年之后,他发现家乡不再是过去的老样子了。

Three years later, he found his hometown wasn't ________ it ________ ________ be.

10.他懒散而又骄傲自满,这充分说明了他失败的原因。

He was lazy and proud, ________ fully ________ ________ his failure.

Teaching is challenging and teaching college is often a mixed bag.Sometimes my class feels more like a cafeteria,where students come and go,______ in the middle of my lectures.Mostly these students have entered college right out of high school.College seems to them like ______ a continuation of high school,______ the sense of newness that often drives curiosity and achievement.

But there is a category of students that gives everyone reasons for ______.They are the so called “nontraditional students”:those who,for one reason or ______,didn’t go to college when they were 18,but many years later.Some years back in my teaching,while calling out names from the name list on the first day,I noticed a gray haired woman of about 70.She was wandering in the doorway,______ her new books like a schoolgirl.

“I’m not on the name list,” she volunteered.“But I was ______ if I could sit in for the first class,to see what marine(海洋) biology is about.” This woman’s eagerness ______ me,so I invited her to have a seat.I began the class with questions to get a(n) ______ of how much knowledge they were bringing to the course.As I questioned them about the difference between fishes and seagoing mammals,most of my new students remained ______.But Natalie,the older woman,was on the edge of her seat,______ answers.At the end of the class,she came up to me and apologized for being the “extra” student.She said,“Will you ______ me another chance?” ______ at losing her,I acted quickly to remove her ______.“I’ll see you next class,”I said.Natalie turned out to be a vital and ______ student.She commuted 50 miles each day to get to school,often in the severe winter,and never missed a class.______ this,she was enthusiastic about helping my younger students.Apparently these older students have the ______ over them.It lies in the breadth and depth of their path of life.After having ______ numerous personal and professional barriers,they have an expansive world view.______ a return to school may,at first,be frightening for them,they tend to make it because they are ______ great trouble to put their studies into an already full life.

1.A. often B. seldom C. never D. hardly

2.A. more than B. other than C. rather than D. no more than

3.A. creating B. lacking C. involving D. inspiring

4.A. anger B. desperation C. hope D. pity

5.A. another B. others C. the other D. none

6.A. bringing B. buying C. holding D. fetching

7.A. hoping B. wondering C. thinking D. expecting

8.A. impressed B. embarrassed C. puzzled D. amused

9.A. plan B. sense C. concept D. idea

10.A. enthusiastic B. silent C. interested D. calm

11.A. asking B. repeating C. rejecting D. volunteering

12.A. offer B. make C. learn D. introduce

13.A. Relieved B. Relaxed C. Alarmed D. Annoyed

14.A. concern B. curiosity C. attention D. concentration

15.A. diligent B. humorous C. intelligent D. open?minded

16.A. Regardless of B. But for C. Except D. Apart from

17.A. ability B. experience C. advantage D. belief

18.A. got over B. got across C. got away from D. got through

19.A. Unless B. Until C. When D. While

20.A. demanding B. taking C. sparing D. escaping

I remember believing in Santa when I was a very young girl. However, as I grew older, I learned many ______ that “proved” his nonexistence. Always  _____ by nature, I was determined to use  _____ to decide whether Santa Claus was _____.

The first test  ______when I was 5. I decided that if I  _____ all night on Christmas Eve, I could see if Santa really came down the chimney.  ______, that was a useless _____. I fell asleep that year, and when I woke up, I saw a  _____ wrapped present under the  _____.

At the age of 7, I came up with another test to see if Santa was real. That year, I didn’t send out my Christmas letter to Santa because I wanted ______ for Christmas, but this turned into a plot. By then, I _______knew Santa wasn’t real, but I wanted enough ______ to support this. That year was ______, because on Christmas Eve, my mother dragged me to our local Wal-Mart and led me around the toy section. I ______ to say a word, but did let my eyes  _____ on a ballet set. I ______ that “Santa” wouldn’t know what I wanted because he shouldn’t be able to read my _____. However, my mother would know everything that caught my eyes in the store. If I got the ballet set the next morning, I would have my evidence. On Christmas morning, there was the ballet set, sitting under the tree again. ______ I didn’t use it much, my mother ended up returning it a few days later. She ______ Santa was generous enough to leave a receipt. That was the end to my task to discover the existence of Santa.

1.A. theories B. facts C. situations D. choices

2.A. cautious B. typical C. curious D. desperate

3.A. data  B. exams C. tricks D. tests

4.A. real B. wise C. merciful D. generous

5.A. worked B. happened C. succeeded D. failed

6.A. called up B. kept up C. stayed up D. made up

7.A. Instead B. Otherwise C. Therefore D. However

8.A. attempt B. suggestion C. effect D. struggle

9.A. roughly B. clearly C. beautifully D. tidily

10.A. bed B. tree C. chimney D. table

11.A. everything B. nothing C. anything D. something

12.A. hardly B. never C. already D. usually

13.A. evidence B. intention C. idea D. experience

14.A. amazing B. strange C. interesting D. annoying

15.A. hated B. tried C. hesitated D. refused

16.A. focus B. try C. put D. call

17.A. hoped B. explained C. argued D. figured

18.A. purpose B. opinion C. mind D. eyes

19.A. As B. If C. Although D. As soon as

20.A. admitted B. promised C. thought D. claimed

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