题目内容

—Maggie, it’s true that being happy is an ability. So can you tell me _________?

—Just as President Xi says, “Happiness is achieved through hard work.”

A.why happiness is so important to us B.who can help achieve happiness

C.how we can find happiness D.what happiness is

练习册系列答案
相关题目

How long will Mrs. Smith’s trip last?

A.Four days. B.Seven days. C.Sixteen days.

—Why do English people talk so often about the weather when they start a conversation?

—Well, it’s probably because the weather is a safe topic.

A.perfectly B.patiently C.possibly

A solar-powered airplane finished its first international flight from Switzerland to Belgium. This is a big step for solar power. Solar energy is clean and useful and you can find it everywhere. But what is solar energy? How do we use it? Let’s find out.

Have you ever seen houses with shiny boards on the roofs? Those families are using solar power.

Solar power converts (转换) the sun’s energy which is said to be greater than the other energy used by all humans all the year. People can convert solar power into heat and electricity.

In the 1830s, British scientist John Herschel used a solar collector to cook food in Africa. This is said to be human’s first try at using solar energy. Today, people use it for many things.

Solar energy can light streets, warm houses and heat water. Unlike other resources, the sun’s energy will run out for billions of years.

Australian students from the University of New South Wales made a solar-powered car on their own. It reached a speed of 120 km per hour. The car uses the same amount of electricity as an oven (微波炉). Moreover, American scientists made a solar-powered nanosatellite (微型卫星). Scientists sent it into space in 2012 to try to find Earth-like planets.

However, solar power has its problems. The amount of sunlight that reaches the Earth’s surface changes because of time and weather.

根据上面短文内容填空。

1.It is _________ for a solar power when _________ flew from Switzerland to Belgium.

2.Solar power can be converted into _________ and it is _________ among all the energy people use all the year.

3.John Herschel, a scientist from _________ cooked food with a solar collector in Africa. And this is the first time for humans to _________.

4.Although solar energy can do many things for humans such as lighting streets, _________, people will _________ it billions of years later.

5.Australian students made a solar-powered car by _________ while American scientists made a nanosatellite which _________ into space in 2012.

It’s sad to learn that a whale has died in the ocean. However, that’s not the end for the whale. It has a lot to give to other sea animals after death.

When a whale dies, it quickly sinks (下沉) to the bottom of the ocean floor. There, the whale body provides food and nutrients (营养) to deep-sea animals, which are often hungry for food. The remains can last for hundreds of years and create a complex ecosystem called a whale fall (鲸落).

Chinese scientists found a whale fall for the first time in the South China Sea during a deep-sea expedition (考察) carried out by oceanic research vessel (舰) Tansuo-1, which finished its expedition on April 2, 2020. Tansuo-1 carried the manned submersible (潜水器) Shenhai Yongshi, which is able to dive to a depth of 4,5000 meters.

The whale fall in the South China Sea is about three meters long. Scientists have found several species (物种) of shrimp and fish near the whale fall. Some fish have started to eat the whale’s tail. The whale fall might be quite recent and needs long-term observation (观察), according to Xie Wei, a scientist who took part in the expedition.

The whale fall ecosystem can exist in the deep ocean because great pressure and cold temperatures there prevent body from decomposing too quickly. But the depth also makes it hard for scientists to discover them. There are about 50 known whale falls in the world.

By studying the whale fall, scientists can better understand how marine (海洋的) ecosystems support life and how to protect biodiversity (生物多样性) resources in the deep sea.

1.What does the writer try to describe in the second paragraph?

A.when a whale fall happen. B.where a whale fall happen.

C.why a whale fall happen. D.how a whale fall happen.

2.Which sentence about the whale fall in the South China Sea is wrong?

A.It was found during a deep-sea expedition.

B.There was several species of shrimp and fish around it.

C.Scientists have finished the study of it.

D.Scientists from China found it on April 2, 2020.

3.The underlined words “decomposing” in Paragraph 5 means _________.

A.putting in B.going bad C.falling over D.setting off

4.Why do scientists study the whale fall?

a. To understand how marine ecosystem support life.

b. To find how long the whale fall is.

c. To protect biodiversity resources in the deep sea.

d. To study whether fish eat the whale’s tail.

A.a b B.a c C.b c D.b d

5.Which magazine can we probably find this article in?

A.Science. B.Geography. C.Mystery. D.Travel

— It’s said that scientists have carried out the vaccine of the COVID-19!

— _________ amazing news it is!

A.What an B.How an C.What D.How

My son often plays _________ football with his friends after school.

A.a B.an C./ D.the

How dangerous it would be if there was a fire! Winter is the time for us to learn a lot more about fire, especially what to do if we are caught in a fire.

1. Shout out

If you smell smoke or see fire, shout out “Fire!”. Shout as loudly as you can, because people may be asleep.

2. Call 119

First get help from your parents or call 119, and then try to put out the fire yourself.

3. Keep down close to the floor

If there is a lot of smoke in your room, keep down close to the floor.

4. Test the door

Test the door to see if it is closed. If the door is cool, open it carefully. If the door is hot, do not open it! Try to find a different way out.

5. Get out

If you can, get out of your home as soon as possible.

6. Don’t use the lift

Never use the lift during the fire. It may also go wrong.

7. Don’t go back

Never go back into a burning building!

1.The passage is mainly about _______.

A.how to look after yourself when you are on fire

B.what to do when you are caught in a fire

C.when to leave the burning place

D.why to call 119 when there is a fire

2.If people are asleep, what will you do when a fire breaks out in your building?

A.Call 120 for help as quickly as you can.

B.Wake your parents up at first.

C.Shout out “Fire!” as loudly as you can.

D.Run away as fast as you can.

3.Why shouldn’t you use the lift when a fire breaks out?

A.Because taking the lift is so slow.

B.Because the fire can burn the lift.

C.Because the lift is too crowded.

D.Because the lift may not work.

4.When a fire is burning, you test the door to _______.

A.find a different way out B.notice the fire clearly

C.call for a much quicker help D.see if it is closed and hot

5.If you realize you have left an expensive thing at home in a fire, you should _______.

A.not go back for it B.keep down close to the door

C.not get out D.keep calm

A live-streaming app that monitors (监控) students in classrooms in some middle schools has raised a lot of online discussion. It was reported that any user of the app Shuidi could see inside classrooms. Some parents have praised the app for giving them the chance to monitor their children, while others worry about privacy problems. Do you think the app is a good idea?

Zhang Xiaoru, 16:

I strongly support this app. Nowadays, children play an important role in the whole family, and parents always want to care for their children, wherever they are. This app helps parents see what their children are doing in classes. It’s also a good way to make students behave themselves in school.

Du Yina, 15:

I’m a supporter of this app if parents get their children’s permission (准许) first. The app could help parents focus on children’s bad habits. It could also be used as a tool to prevent bullying (霸凌). However, parents should get their permission first to protect their privacy.

Zhao Xuehan, 16:

I think this app is a bad idea. Schools should be a pleasant and relaxing place for students to study and play. But we will feel uncomfortable if cameras are watching us all the time. We should pay attention to our privacy. Our lives shouldn’t be watched by the public.

Zhang Liliang, 15:

Any form of privacy invasion (侵犯) shouldn’t be allowed. Although some parents want to know more about their children, they should do it in a better way. Being under the eye of strangers is too dangerous.

1.What does the live-streaming app do?

A.It plays educational videos in class. B.It lets students join online discussions.

C.It reports on which apps teachers use. D.It monitors students in classrooms.

2.On which condition does Du support the app?

A.Parents should get their children’s permission before using it.

B.Parents can change their children’s bad habits through the app.

C.The app could be used as a tool to prevent bullying.

D.The app is able to protect students’ privacy.

3.According to what Zhao Xuehan said, what does she do?

A.She is a student. B.She is a teacher. C.She is a parent. D.She is an app maker.

4.Zhang Liliang thinks the app is dangerous because it will _____.

A.invade students’ privacy B.allow parents to see something they shouldn’t see

C.force students to do things they don’t want to do D.hurt people’s eyes

5.Which of the following is TRUE?

A.Now most middle schools have used apps to monitor students.

B.Different people have different opinions about using the app.

C.Zhang Xiaoru supports the app only in some ways.

D.Middle schools aren’t allowed to use this app.

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网