题目内容

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.

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Looking for volunteers

Hi,all,

Fancy running a programme item or two?

We are looking for volunteers to run a number of programme items. If you meet one or more of the following requirements, we are very happy to hear about them at programme@dwcon.org.

Have guitar, will travel

We have two sing-along items planned (one of them aimed specifically at kids). Unfortunately, one organizer had to leave for some personal reasons, so we need one or two people. We are happy to discuss what we had in mind, but this can be run in any way you want.

Have questions, can point

We have two panels(专家咨询组)for this year: panel on writing and panel on story archetypes(原型).

We are looking for two volunteers to run these panels as chair. The main responsibility will be to point at people with questions, and have a few questions /remarks(评述)ready in case the audience has no ideas yet. Or if you always want to know something of course.

Play recorder

On Friday evening we will have a karaoke-like programme item, and we are looking for one or two volunteers to act as “DJ”. Music and equipment will be provided, so we mostly expect you to keep track of whose turn it is to sing

Have eyes for colour

Guess what, this is a paint-related item. We would like to make “rock puppets(木偶),and we need one or two volunteers to guide that. Paint and rocks will be provided.

1.The volunteers who will work on the two panels should __________

A. be experts on writing.

B. be skilled at telling stories.

C. be good at asking questions

D. be experienced in chairing competitions

2.What is the duty of a volunteer “DJ”?

A. To make sure the equipment works well.

B. To play records for the person who will sing.

C. To make plans for the karaoke-like programme.

D. To choose the right music for the person to sing.

3.What should the volunteers work as for the paint-related item?

A. Guides. B. Painters.

C. Organizers. D. Chairpersons.

Parents must focus on a healthy balanced lifestyle for their children instead of focusing on weight or dieting in order to prevent obesity(肥胖)and eating disorder among teenagers, say new guidelines from the American Academy of Pediatrics. The guidelines were developed in response to growing concern about teenagers’ use of unhealthy methods to lose weight.

Quick weight loss methods can cause medical consequences such as unstable heart rate. Also, teenagers who diet in ninth grade are three times more likely than their peers(同龄人)to be over-weight in 12th grade, the researchers said. “Scientific evidence increasingly shows that for teenagers, dieting is bad news,” said lead author Neville Golden, Professor at the Stanford University.

Parents should not encourage dieting, and should avoid “weight talk” such as commenting on their own weight or their children’s weight. Instead parents should help their children develop a healthy body image by encouraging them to eat a balanced diet and exercise for fitness, not weight loss, the researchers states. Further, they should also never tease teenagers about their weight. Negative comments about weight can also be detrimental to a teenager’s health.

“Mothers who talk about their own bodies and weights can encourage their kids to have body dissatisfaction, which we see in half of teenage girls and a quarter of boys,” Golden noted. Such dissatisfaction is associated with lower levels of physical activities and with use of laxatives(泻药)to control weight.

Families should eat regular meals together, the researchers suggested, adding that eating family meals is likely to prevent weight problems, said the paper published online in the journal Pediatrics. Eating too fast, eating when not hungry, always eating dessert, eating out often are not advisable when you watch your weight.

1.What is likely to happened to teenagers if they go on a diet in ninth grade?

A. Their studies will suffer a lot

B. They’ll probably have unstable heart rate

C. They’re more likely to be overweight in 12th grade

D. They’ll probably have eating disorder problems

2.What should parents do to prevent teenager obesity?

A. Urge teenagers to go on a strict diet

B. Comment on their own weight when eating

C. Express their dissatisfaction about their bodies

D. Encourage teenagers to eat healthily and exercise properly

3.What does the underlined word “detrimental” in the third paragraph probably mean?

A. Strange B. Harmful

C. Necessary D. Deadly

4.Which is considered helpful to prevent overweight?

A. Eating family meals more often

B. Eating only when hungry

C. Dinning out often

D. Eating too slow

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