Modern inventions make our life easier and more interesting than before. Let’s take a look at some inventions.

A new kind of enzyme(酶)

Scientists in Britain and the United States have found a new kind of enzyme that eats plastics. With its help, plastics can be turned into smaller parts and go away quickly. It can stop plastics from being burned everywhere. Scientists believe that it can solve the problem of plastic pollution in the future.

Social robot

Can robots talk to us like humans? Jibo, a robot made in US, can talk with you. The robot has a big, round head and a big body with no eyes or mouth. It uses animated icons (动画图标) to show emotions(情绪). It just seems like a real human. Right now, Jibo can only do some easy things, like taking photos and reading news to you. But it may learn to do new things in the future.

Spark

Spark is a new drone(无人驾驶飞机) made by a Chinese company in Shenzhen. It can help people take photos and videos. Spark might be the smallest drone ever made. When folded, it is as small as a Coke can. The coolest part is that users can control the small drone just by using hand gestures. For example, if you wave your hand from left to right, the drone will fly in the same way. When you want it to land you just put your hand out.

The drone will come to you and land on your hand.

根据短文内容选择最佳答案,并在答题卡上将该项涂黑。

1.According to the scientists, the new kind of enzyme can__________.

A.solve the problem of air pollution

B.stop plastics from being thrown everywhere

C.help plastics to burn quickly

D.help plastics to turn into smaller parts

2.We can learn that Jibo__________according to the text.

A.is a person with a big, round head

B.has big eyes and a big mouth

C.can take photos and read news to people

D.can do many difficult things

3.According to the text, what can we know about spark?

A.Spark is bigger than any other drones ever made.

B.Spark can be controlled by hand gestures.

C.Spark can only fly towards the same direction.

D.Spark is created by scientists from a US company.

4.Which of the following is Not true according to the text?

A.The enzyme is helpful in protecting the environment.

B.The social robot can only do something easy.

C.Spark can help people take photos and videos.

D.The social robot and Spark can both take photos and read news.

5.Where is this text most probably from?

A.A science report. B.A school introduction

C.A shopping poster. D.a trip advertisement.

Squirrels are getting ready for winter. They are looking for nuts(坚果) and seeds(种子), digging holes in the ground or finding holes in trees. That’s where they store the food they will need during the coming months, when the weather is cold and sometimes snowy.

Squirrels spend a lot of time in trees, which are like restaurants for them. Among their favorite things to eat are nuts and other parts of trees, like tender buds (花苞).

Squirrels may also eat corn, insects and other animals. And, as anyone who has a bird knows, squirrels love bird food!

Squirrels stay active(活跃) all winter, so they need plenty of food to help keep up their energy(能量). Squirrels tend to bury food underground, piece by piece. Some squirrels may gather(收集) food into piles that they put at the base of trees or bury underground.

When they need food, squirrels use their memory and smell to help them find what they buried. Sometimes, you’ll even see them digging through the snow.

Squirrels make nests in trees. Some squirrels spend much of the winter in underground tunnels (地道), where it is warmer.

When spring comes, squirrels change their eating habits to new plant growth, like buds and leaves. Sometimes they forget to dig up all their buried nuts.

That’s why you’ll sometimes find a little tree growing in a place where neither you nor your family planted it. It must have been the squirrels.

1.To get ready for winter, squirrels do all of the following EXCEPT(除了) ______ .

A.store leaves to keep warm B.look for nuts and seeds

C.find holes in trees D.dig holes in the ground

2.The underlined part “tend to bury” in Paragraph 4 means ______ .

A.never bury B.seldom bury C.usually bury D.hardly bury

3.According to the passage, we know that______ .

A.squirrels do not eat any other animals

B.squirrels sleep all the time during winter

C.squirrels plant young trees when spring comes

D.squirrels sometimes can't find all of their buried nuts

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