题目内容

— Rick, Let’s go to the________this weekend. A wonderful art show is on.

— Good idea.

A.museum B.church C.theatre

练习册系列答案
相关题目

"Harry Potter" is one of the most popular novels with many fans ________ was written by J. K. Rowlin.

A.that B.what C.who

—What do you think of the environment here?

—Wonderful! ________ of the land ________ covered with trees and grass.

A.Two fifths; is B.Two fifth; is C.Two fifths; are

Return to the moon

It might not be long until humans uncover the secrets of the far side of the moon. China’s Chang’e 4 robotic probe (探测器), which is set to become the first probe to land on the moon’s far side, was launched successfully on Dec 8, Xinhua reported.

The moon rotates (自转) at the same speed that it orbits (绕…运行) Earth. Therefore, the same side of the moon always faces Earth. The far side of the moon is the side that we cannot see. We don’t know much about it so far.

However, the far side of the moon is an ideal (理想的) place for scientific research(研究). It is exposed (暴露) to solar winds that may have formed unique minerals (矿物质) and other resources. And since the far side is less affected by Earth’s gravity, scientists can make clearer observations of deep space from there, according to China Daily.

But it is hard to land on the far side of the moon. Spacecraft that land there cannot receive any radio signals(信号) from Earth. To solve this problem, China launched a relay satellite (中继卫星) called Queqiao into space in May. Through Queqiao, scientists can control and operate Chang’e 4 and make sure it will land in a specific(特定的) area.

The probe’s travel time is also important. Chang’e 4 is expected to land on the moon on Jan 2, China Daily reported. It will travel through space for more than 20 days before landing. This is longer than Chang’e 3, which was in space for about 12 days before landing.

The travel time was changed because scientists want Chang’e 4 to land on the moon when it is daytime. This way, the spacecraft’s solar panels ( 太 阳 能 板 ) can receive energy from the sun and allow the probe to start working. A single day on the moon is about 28 days on Earth. Therefore, Chang’e 4 will keep orbiting the moon before landing as it waits for daytime, according to Sun Zezhou, chief designer of Chang’e 4.

Did you know? Chang’e 4 took some plant seeds and eggs to the moon. It was hoped that Chang’e 4 was able to do experiments with them. These were the first biological experiments to take place on the moon.

1.Is Chang’e 4 the first probe to land on the far side of the moon?

2.What does the far side of the moon refer to(指代)?

3.Why does the same side of the moon always face Earth?

4.How did Chinese scientists solve the problem of no signals?

5.Why do scientists want Chang’e 4 to land in daytime?

There________a football match in our school this weekend. Would you like to go and see it?

A.is going to have B.are going to be C.is going to be

She’d like to join the music club because she________play the piano well.

A.can B.may C.must

社会发展得太快，谁会独领风骚，没人会知道。

The society is developing so fast that nobody knows who _______________________next.

—What do you think of the advantage of shopping online?

—We________spend much time going from one shop to another.

A.shouldn’t B.needn’t C.mustn’t D.can’t

About 800 years ago, a Chinese man named Wang Hu made the world’s first rocket, but unluckily he lost his life with it. It was not until April 24, 1970 that China sent its first satellite Dongfanghong-1 to space successfully.

To celebrate the first big success for the country’s space development, April 24 is now China’s Space Day, which started this year. While celebrating, China also announced(宣布)new plans to make a space station and go to Mars and further space.

A space station is like a home for astronauts in space, Astronauts live and work on a space station and spaceships can even park there. China plans to finish building its space station in 2022.

According to China’s top space scientist, Zhou, Jianping, by that time, becoming an astronaut will be a normal job. Astronauts are needed more than ever before. They need to be able to finish more tasks. So far, China has been choosing astronauts mainly from pilots. In the future astronauts will also be picked from engineers, doctors and space technology experts.

Another plan is about Mars. In order to search Mars, China will send a probe(探测器)first to Mars around 2020. It will land there and even bring back things from the Mars.

It’s such a big plan! Only by doing this can China say it has truly started the exploration of deep space. And the exploration will help us understand how the universe changes.

1.________ made the world’s first rocket.

2.China’s Space Day is on ________.

3.China plans to ________ in 2022.

4.China will send a ________ to Mars.

5.The passage mainly tell us________.

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