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Robots are supposed to run on batteries, right? Well not all of them.

Scientists in England have built a kind of small robots that get their energy from dead flies, bad apples, or sugar.

One robot, called Slugbot, was even designed to hunt(猎取) garden slugs for dinner!

What's up with all that food?

Well, scientists at the Bristol Robotics Laboratory want to invent robots that can operate for a long time in dark, dirty, or dangerous places.

Many of those spots, like the seafloor or Antarctica, don't have electrical sockets(插座).

So inventor Chris Melhuish came up with a better idea: Build robots that get their energy just like animals do by hunting and eating food from their environment.

One robot, called Ecobot Ⅱ, could run for 12 days on a diet of eight flies! Of course, it'd still get a lot more power from one AA battery, though.

Melhuish says his team is now working on a new and improved robot, called Ecobot III, which will have a better digestion system.

It seems that after an eight fly dinner, Ecobot II couldn't deal with the leftover(剩下的) "waste".

Maybe restrooms in the future will have signs for boys, girls, and robots.

1.An ordinary robot usually .

A.gets its energy from sugar

B.depends on batteries to work

C.can get food for itself

D.can work a few minutes without energy

2.From the passage, we can infer that a slug .

A.is a kind of insect B.is a kind of fish

C.can't see Slugbot D.can eat Slugbot

3.What kind of robots do inventor Chris Melhuish want?

A.Robots that can provide people with food.

B.Robots that can work in dangerous places.

C.Robots that can get energy for themselves.

D.Robots that can be very small.

4.Which of the following is NOT true according to this passage?

A.Robots need to work in places that have no sockets for power.

B.Melhuish is not very satisfied with Ecobot Ⅱ.

C.Maybe there will be three kinds of restrooms in the future.

D.Ecobot Ⅱ can turn its flies into energy completely.

5.What does the passage mainly tell us?

A.Robots are hard things to invent.

B.Scientists are working to improve robots.

C.Robots in the future need to eat food like human.

D.Scientists at the Bristol Robotics Laboratory are good at robots.

Hi, dear boys and girls! Do you know how to be a healthy kid? Here are some rules you should follow.

First, eat different foods, especially(尤其) fruit and vegetables. You may have a favourite food, but you'd better eat something different, if you eat different foods, you will probably get more nutrients(营养物质) your body needs.

Second, drink water and milk as often as possible. When you're really thirsty, cold water is the No.l choice(选择). Milk is a great drink that can give you more calcium(钙) your body needs to grow strong bones(骨头).

Third, listen to your body. How do you feel when you are full? When you are eating, notice how your body feels and when your stomach(胃) feels comfortably full. Eating too much will not make you feel comfortable and make you fat.

Fourth, limit(限制) screen time. Screen time is the time you watch TV, DVDs and videos, or using computers. It is good to take more exercise such as basketball, bike riding and swimming. You can't watch TV for more than two hours a day.

Fifth, be active. One thing you'd like to do as a kid is to find out which activity you like best. Find ways to be active every day.

Follow these rules and you can be a healthy kid.

1.You have to eat different kinds of foods especially _______

A. meat

B. hamburgers

C. sweets

D. fruit and vegetables

2.Which kind of drinks can give you more calcium?

A. Juice

B. Milk

C. Cold water

D. Tea

3.According to(根据) the passage, you should follow _______ rules if you want to be healthy.

A. five

B. nine

C. fifteen

D. thirteen

4.Which is the best title(标题) of the passage?

A. How to make yourself important

B. How to be a healthy kid

C. How to be a popular kid

D. How to make your parents healthy

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