Here are some of the coolest robots in the world.

Pleo

Pleo is one of the most good-looking robots on the market. The robot is designed to learn from its experiences, and the environment it is kept in. Pleo has become especially popular among children, as it could be used for both entertainment and educational purposes. It exhibits lively behavior like eating and sleeping. It can now be bought at a price of $469.

BigDog

BigDog is the most advanced rough land robot on earth. Designed to serve military (军事的) uses, the machine is around 3 feet long, 2.5 feet tall, and weighs 240 pounds. The robot can move on rough land at a speed of four miles per hour, and is able to carry up to 340 pounds of weight.

I-Sobot

An Amazing human-like robot, I-Sobot is one of the smallest human-like robots, with a height of just 6.5 inches and a weight of 12 ounces. It costs $300. It has become the most-produced robot in the world. This small robot can walk, play the air guitar, and perform about 200 moves. This robot can be controlled by either a remote control or voice commands.

Schaft
       Schaft is an award-winning robot by Google. It looks like a man. Schaft can perform several tasks on its own, and is able to get through disaster areas and work with any tools and materials at hand. With the strength of 10 average people, Schaft is able to lift and clear heavy things. It weighs 209 pounds. It is able to move at a speed of 2km / h.
KeepOn

KeepOn is a small robot which can perform simple and natural interaction. Developed in 2015, KeepOn is an interactive toy designed to help children with autism(自闭症) in their social development, and costs anywhere from $40 to $100.

【小题1】What makes Pleo different from the other four robots mentioned in the text?

A．Being very cheap for customers.	B．Having a very special appearance.
C．Having the ability to learn new things.	D．Being able to be played with all the time.

【小题2】Which of the following robots is designed for the army?

A．Pleo

B．BigDog

C．I-Sobot

D．KeepOn

【小题3】What do we learn about I-Sobot?

A．It can move fast.	B．It is difficult to control.
C．It is expensive to produce.	D．It has been very popular.

【小题4】What is Schaft most probably suitable for?

A．Entertainment	B．Interacting with children
C．Educational purposes	D．Performing rescue tasks

【小题5】Who would most probably buy KeepOn?

A．Children who want to win an award.

B．Old and lonely people who need much help.

C．Parents with a child who cannot interact well.

D．Parents who want their children to learn new things.