B
On February 21, 2022, US company SpaceX sent 46 satellites into space. Then six days later, China sent 22 satellites into space. Why do we need so many satellites? What do they do for us?
At present, there are more than 3,000 active satellites moving around the Earth. Satellites have all kinds of roles, from sending TV signals, giving you directions on the road, to helping scientists with their research. For example, the 22 satellites China sent up are part of the BeiDou Navigation(导航) Satellite System. Shared bikes that use BeiDou chips can provide more correct positions, making them easier to find.
Before the use of satellites, TV signals didn't reach very far. Mountains or tall buildings would block the signals. Phone calls to faraway places were also a problem. Setting up telephone wires over long distances is difficult. With satellites, TV signals and phone calls can be sent directly to a satellite and back down to different places on the Earth. SpaceX's Starlink project plans to use satellites to provide people with the internet all over the world.
Satellites can also provide information about clouds, oceans, land and ice. They help scientists with predictions of changes in weather and climate. By watching and checking wildfires and volcanoes(火山), satellites help emergency workers deal with natural disasters. Farmers can use satellite pictures to decide the best time to water their fields.
Some satellites fly near other planets. They may look for water on Mars or take close-up pictures of Saturn's(土星的) rings. One video website even sent a satellite into space to look at other planets and share pictures and videos with users.
(
A. On February 15, 2022.
B. On February 21, 2022.
C. On February 26, 2022.
D. On February 27, 2022.
(
A. Help.
B. Provide.
C. Stop.
D. Change.
(
A. Humans have sent more than 3,000 active satellites into space now.
B. There are 22 satellites in the BeiDou Navigation Satellite System in all.
C. Satellites help emergency workers with predictions of changes in weather and climate.
D. Before the use of satellites, making phone calls to faraway places was easy.
(
A. ①②③/④⑤
B. ①②/③④/⑤
C. ①/②③④⑤
D. ①/②③④/⑤
(
A. Where do people send satellites?
B. What can satellites do for us?
C. How do people make satellites?
D. When can we see satellites?
On February 21, 2022, US company SpaceX sent 46 satellites into space. Then six days later, China sent 22 satellites into space. Why do we need so many satellites? What do they do for us?
At present, there are more than 3,000 active satellites moving around the Earth. Satellites have all kinds of roles, from sending TV signals, giving you directions on the road, to helping scientists with their research. For example, the 22 satellites China sent up are part of the BeiDou Navigation(导航) Satellite System. Shared bikes that use BeiDou chips can provide more correct positions, making them easier to find.
Before the use of satellites, TV signals didn't reach very far. Mountains or tall buildings would block the signals. Phone calls to faraway places were also a problem. Setting up telephone wires over long distances is difficult. With satellites, TV signals and phone calls can be sent directly to a satellite and back down to different places on the Earth. SpaceX's Starlink project plans to use satellites to provide people with the internet all over the world.
Satellites can also provide information about clouds, oceans, land and ice. They help scientists with predictions of changes in weather and climate. By watching and checking wildfires and volcanoes(火山), satellites help emergency workers deal with natural disasters. Farmers can use satellite pictures to decide the best time to water their fields.
Some satellites fly near other planets. They may look for water on Mars or take close-up pictures of Saturn's(土星的) rings. One video website even sent a satellite into space to look at other planets and share pictures and videos with users.
(
D
) 5. When did China send the 22 satellites into space?A. On February 15, 2022.
B. On February 21, 2022.
C. On February 26, 2022.
D. On February 27, 2022.
(
C
) 6. What may the underlined word "block" in paragraph 3 mean?A. Help.
B. Provide.
C. Stop.
D. Change.
(
A
) 7. Which of the following is TRUE?A. Humans have sent more than 3,000 active satellites into space now.
B. There are 22 satellites in the BeiDou Navigation Satellite System in all.
C. Satellites help emergency workers with predictions of changes in weather and climate.
D. Before the use of satellites, making phone calls to faraway places was easy.
(
C
) 8. What's the structure of this passage?A. ①②③/④⑤
B. ①②/③④/⑤
C. ①/②③④⑤
D. ①/②③④/⑤
(
B
) 9. Which can be the best title for this passage?A. Where do people send satellites?
B. What can satellites do for us?
C. How do people make satellites?
D. When can we see satellites?
答案：5. D
6. C
7. A
8. C
9. B
6. C
7. A
8. C
9. B
解析：
翻译:
B
2022年2月21日，美国太空技术探索公司（SpaceX）将46颗卫星送入太空。六天后，中国也将22颗卫星送入太空。我们为什么需要这么多卫星？它们能为我们做什么？
目前，有超过3000颗活跃的卫星在地球周围运行。卫星有各种各样的作用，从传输电视信号、为你提供道路导航，到帮助科学家进行研究。例如，中国发射的这22颗卫星是北斗导航卫星系统的一部分。使用北斗芯片的共享单车可以提供更准确的位置信息，使它们更容易被找到。
在卫星投入使用之前，电视信号传输的距离不远。山脉或高楼会阻挡信号。给远方的人打电话也是个难题。长距离架设电话线很困难。有了卫星，电视信号和电话可以直接发送到卫星，然后再传回地球上的不同地方。太空技术探索公司的“星链”项目计划利用卫星为全世界的人们提供互联网服务。
卫星还可以提供有关云层、海洋、陆地和冰川的信息。它们帮助科学家预测天气和气候的变化。通过监测和查看野火和火山，卫星帮助应急人员应对自然灾害。农民可以利用卫星图像来确定灌溉农田的最佳时间。
一些卫星在其他行星附近飞行。它们可能会在火星上寻找水，或者拍摄土星环的特写照片。一个视频网站甚至发射了一颗卫星到太空去观测其他行星，并与用户分享照片和视频。
5. 中国什么时候将22颗卫星送入太空的？
A. 2022年2月15日。
B. 2022年2月21日。
C. 2022年2月26日。
D. 2022年2月27日。
6. 第三段中划线单词“block”可能是什么意思？
A. 帮助。
B. 提供。
C. 阻挡。
D. 改变。
7. 以下哪项是正确的？
A. 目前人类已经向太空发射了超过3000颗活跃的卫星。
B. 北斗导航卫星系统总共有22颗卫星。
C. 卫星帮助应急人员预测天气和气候的变化。
D. 在卫星投入使用之前，给远方的人打电话很容易。
8. 这篇文章的结构是怎样的？
A. ①②③/④⑤
B. ①②/③④/⑤
C. ①/②③④⑤
D. ①/②③④/⑤
9. 这篇文章的最佳标题是什么？
A. 人们把卫星送到哪里？
B. 卫星能为我们做什么？
C. 人们如何制造卫星？
D. 我们什么时候能看到卫星？
B
2022年2月21日，美国太空技术探索公司（SpaceX）将46颗卫星送入太空。六天后，中国也将22颗卫星送入太空。我们为什么需要这么多卫星？它们能为我们做什么？
目前，有超过3000颗活跃的卫星在地球周围运行。卫星有各种各样的作用，从传输电视信号、为你提供道路导航，到帮助科学家进行研究。例如，中国发射的这22颗卫星是北斗导航卫星系统的一部分。使用北斗芯片的共享单车可以提供更准确的位置信息，使它们更容易被找到。
在卫星投入使用之前，电视信号传输的距离不远。山脉或高楼会阻挡信号。给远方的人打电话也是个难题。长距离架设电话线很困难。有了卫星，电视信号和电话可以直接发送到卫星，然后再传回地球上的不同地方。太空技术探索公司的“星链”项目计划利用卫星为全世界的人们提供互联网服务。
卫星还可以提供有关云层、海洋、陆地和冰川的信息。它们帮助科学家预测天气和气候的变化。通过监测和查看野火和火山，卫星帮助应急人员应对自然灾害。农民可以利用卫星图像来确定灌溉农田的最佳时间。
一些卫星在其他行星附近飞行。它们可能会在火星上寻找水，或者拍摄土星环的特写照片。一个视频网站甚至发射了一颗卫星到太空去观测其他行星，并与用户分享照片和视频。
5. 中国什么时候将22颗卫星送入太空的？
A. 2022年2月15日。
B. 2022年2月21日。
C. 2022年2月26日。
D. 2022年2月27日。
6. 第三段中划线单词“block”可能是什么意思？
A. 帮助。
B. 提供。
C. 阻挡。
D. 改变。
7. 以下哪项是正确的？
A. 目前人类已经向太空发射了超过3000颗活跃的卫星。
B. 北斗导航卫星系统总共有22颗卫星。
C. 卫星帮助应急人员预测天气和气候的变化。
D. 在卫星投入使用之前，给远方的人打电话很容易。
8. 这篇文章的结构是怎样的？
A. ①②③/④⑤
B. ①②/③④/⑤
C. ①/②③④⑤
D. ①/②③④/⑤
9. 这篇文章的最佳标题是什么？
A. 人们把卫星送到哪里？
B. 卫星能为我们做什么？
C. 人们如何制造卫星？
D. 我们什么时候能看到卫星？