Unit 2 单元练习2024-2025学年牛津译林版英语九年级下册

Unit 2 单元练习 一、词汇运用 1.Edison is an American who invented over 1,000 inventions.(发明家) 2.Columbus is an explorer that is one of the first ______________to discover America.(欧洲人) 3.The sea covers almost three-fourths of the Earth’s______________(表面). 4.For______________ information, please write to our company. (更进一步的) 二、完形填空 In modern times, we admire the bravery of astronauts. We 1_ into the sky and wonder if they will ever return from their voyage (航行) into the great unknown. It’s hard to believe, but only a short while ago, our own earth was as huge and unknown as 2 is today. Only 500 years ago, most of the earth was not explored. Sailing too far away from land was as 3 then as it is today for astronauts to sail into outer space. But humans have always wanted to learn about the world, no matter what the dangers. The great Chinese 4 , Zheng He, proves this point. In 1405, at the request of the Emperor, he left China for the first of 5 voyages of discovery that he made between 1405 and 1433. The fleet of ships given to Zheng for these voyages was 6 as the “fleet of friendship”, for this was the purpose of his trips. On each trip Zheng ordered more than 20,000 men on hundreds of ships. He sailed the South China Sea, and 7 the Indian Ocean to eastern Africa. 8 , he visited 30 countries and began trade with them. At each port, the Chinese sailors made 9 with the local people. On one voyage to 10 , Zheng bought some rare animals for the Emperor. He 11__ fair prices for a lion, a leopard, an ostrich, and a giraffe, and then brought them to the Emperor’s palace. On each return visit, the locals remembered the Chinese sailors and 12 them gifts. It can be said that Zheng’s seven voyages of discovery were important 13 people learned more and more about the earth that lay 14 China’s coast. 15 important, however, were the friendly diplomatic (外交) relations that were begun so long ago. In 1419, seventeen countries sent officers back to China with Zheng. This was the beginning of a long friendship between China and its neighbours in South Asia and beyond to Africa. ( )1.A.look down B.look up C.look out D.look through ( )2.A.space B.sea C.land D.mountain ( )3.A.easy B.dangerous C.comfortable D.simple ( )4.A.explorer B.scientist C.inventor D.pilot ( )5.A.six B.five C.seven D.eight ( )6.A.given B.known C.called D.filled ( )7.A.across B.through C.over D.above ( )8.A.In all B.At all C.After all D.Above all ( )9.A.friendly B.friendship C.friends D.unfriendly ( )10.A.Africa B.America C.Asia D.Europe ( )11.A.cost B.spent C.took D.paid ( )12.A.offered B.provided C.presented D.showed ( )13.A.so B.because C.but D.though ( )14.A.against B.beside C.beyond D.towards ( )15.A.Possibly B.Simply C.Highly D.Equally 三、阅读理解 “Welcome to our new ‘classroom’!” said Chen Dong, one of the three astronauts of the Shenzhou XIV mission (神舟十四号任务). They were giving a science class 400 kilometers above Earth on Oct 12. It was the third space class from the Tiangong space station, but the first one from the Wentian lab module (实验舱) since its launch in July. The former two classes were held in the Tianhe core module (核心舱). What does the new “classroom” look like? Chen, together with Liu Yang and Cai Xuzhe, showed us around. “The beds in the Tianhe module are placed horizontally (横着), while our beds are kept upright,” said Liu. That means astronauts in the Wentian lab module need to sleep standing up! But as Liu explained, people don’t feel any difference because there’s no gravity in space. Astronauts can even sleep on the ceiling or upside down! The astronauts also showed their “space farm”, where lettuce, wheat , thale cress (拟南芥) and rice are grown. “Take a picture!” “Send the picture!” Through a voice-controlled camera, Chen already sent a picture of the thale cress to scientists on Earth. Then he used scissors to cut a sample (样本). “I’ll put it into a fridge at - 80℃ and later give it to scientists on Earth,” said Chen. Scientists will study how the environment of space affects the growth of plants. “Can you see the water drops coming from the leaves? This is called ‘guttation’ (植物吐水现象)” said Liu, holding the well-grown rice. In space, the water drops are much bigger than those on Earth. So people can clearly see the guttation. “We hope in the near future, we can harvest (收获) the food grown on our own,” said Chen. “Maybe one day, we can harvest food on the other planets like moon or even Mars!” ( )1. Where did the third space class take place? A. In the Shenzhou XIV. B. In the Tianhe core module. C. In the Wentian lab module. D. In the International Space Station. ( )2 How do scientists on Earth study the plants in the space station? A. By watching them through real-time video cameras. B. By taking and collecting pictures themselves. C. By growing the plants in space themselves. D. By studying the samples astronauts bring back. ( )3. What was shown in the third class in the Tiangong space station? A. Cooking. B. The space farm. C. Astronauts harvesting food. D. The surface tension of water. ( )4. What can we infer from the last paragraph? A. Farmers can get crops on moons soon. B. Scientists will try to grow food on moons or even Mars. C. Lettuce, wheat, thale cress (拟南芥) will be grown on other planets, too. D. “Guttation” can be seen from leaves of rice. 四、信息还原 Thirty years ago, China started to build its own navigation satellite system(卫星导航系统), Beidou. In 1994, China began making the Beidou Navigation Satellite System (BDS), so it wouldn’t have to use navigation systems from other countries. 1 . The achievement placed China among the group of countries with their own global navigation network. The US, Russia and the European Union are the other three. 2 . Beidou does not just show where you are. It’s also the first to let you send texts where there’s no phone signal(信号)or Internet. It has now been widely used in international rescue(救援)operations. “It can be of great help in earthquakes, when ground signals are completely cut off, ” Chen Suzhen, head of the Blue Sky Rescue Team in Xiamen, told CGTN. On April 25, 2015, an earthquake hit Nepal. Lack of proper contact among international rescue teams created main problems in rescue operations. “Luckily, our team had BDS. The BDS helped us a lot during the rescue. 3 ,” Chen told CGTN. With 5G technology now in wide use, the “5G + BDS” will be widely applied in conditions that require fast speed, precise(精确的)location and navigation services. 4 .When there are three satellites, the position can be the two points where three balls meet. Compared with the GPS, the BDS provides navigation signals on multiple frequencies(多频信号)to improve service. The BDS is more than a system. 5 .Now over 120 countries are using it. Wherever you are, Beidou is there to help you find your way. A.With its powerful performance, BDS can provide services to meet different requirements. B.Several years later, Beidou completed its global network. C.The GPS and the BDS use the same way to find out position. D.If every country uses the BDS, our rescue operations will be more effective. E.It shows China’s power in science and technology. F.The GPS and the BDS play an equally(同样地)important role in our lives. 一、词汇运用 1. inventor 2. Europeans 3. surface 4. further 二、完形填空 1. B：look up into the sky 意为 “仰望天空”，人们仰望天空，好奇宇航员是否能从未知的航行中归来，符合语境。look down 向下看；look out 小心；look through 浏览，均不符合题意。 2. A：根据上下文，将过去对地球的未知与现在对太空的未知进行类比，所以选 space（太空）。 3. B：由前文 “most of the earth was not explored” 可知，当时远离陆地航行和如今宇航员进入外太空一样危险，dangerous 符合文意。easy 容易的；comfortable 舒适的；simple 简单的，均不符合。 4. A：郑和是伟大的探险家，explorer 意为 “探险家”，符合对郑和身份的描述。scientist 科学家；inventor 发明家；pilot 飞行员，均不符合。 5. C：根据常识，郑和在 1405 - 1433 年间共进行了七次航行，所以选 seven。 6. B：be known as 意为 “被称为”，这里指郑和的船队被称为 “友谊之船”，符合语境。be given as 作为…… 被给予；be called 被叫做（后一般直接接名称，不接 as）；be filled as 无此搭配。 7. A：across 表示 “从表面穿过”，这里指从印度洋表面穿过，符合航行语境。through 从内部穿过；over 在…… 上方（不接触）；above 在…… 上方，均不符合。 8. A：in all 意为 “总共”，表示总共访问了 30 个国家，符合文意。at all 根本（常用于否定句和疑问句）；after all 毕竟；above all 首先，均不符合。 9. C：make friends with sb. 是固定短语，意为 “与某人交朋友”，所以选 friends。 10. A：根据后文提到的 “eastern Africa” 以及 “bought some rare animals” 等信息可知，此次航行是去非洲，所以选 Africa。 11. D：pay...for... 为固定搭配，意为 “为…… 支付……”，这里表示郑和为购买动物支付了合理的价格。cost 的主语通常是物；spend 的常用结构为 spend...on sth. 或 spend...(in) doing sth.；take 常用于 it takes sb. some time to do sth. 结构，均不符合。 12. A：offer sb. sth. 意为 “给某人提供某物”，这里指当地人给中国水手礼物。provide 常用结构为 provide sb. with sth. 或 provide sth. for sb.；present 作 “赠送” 讲时，常用结构为 present sb. with sth.；show 展示，不符合语境。 13. B：前后句是因果关系，因为人们通过郑和的航行更多地了解了地球，所以说他的航行很重要，because 引导原因状语从句，符合逻辑。 14. C：beyond 有 “超出，在…… 之外” 的意思，这里指中国海岸以外的地方，符合文意。against 反对；beside 在…… 旁边；towards 朝，向，均不符合。 15. D：equally 意为 “同样地”，这里表示同样重要的是建立了友好的外交关系，符合语境。possibly 可能地；simply 简单地；highly 高度地，均不符合。 三、阅读理解 1. C：根据第二段 “It was the third space class from the Tiangong space station, but the first one from the Wentian lab module (实验舱) since its launch in July.” 可知，第三次太空课在问天实验舱进行，所以选 C。 2. D：根据第四段 “Then he used scissors to cut a sample (样本). ‘I’ll put it into a fridge at - 80℃ and later give it to scientists on Earth,’ said Chen. Scientists will study how the environment of space affects the growth of plants.” 可知，科学家通过研究宇航员带回的样本研究太空站的植物，所以选 D。 3. B：文章第四段开始介绍宇航员展示他们的 “太空农场”，并介绍了里面种植的植物以及相关现象，所以第三次太空课展示了太空农场，选 B。 4. B：最后一段宇航员表示希望在不久的将来能收获自己种植的食物，甚至有一天能在月球或火星上收获食物，由此可推断科学家将尝试在月球或火星上种植食物，所以选 B。 四、信息还原 1. B：前文提到 1994 年中国开始建设北斗卫星导航系统，后文说这一成就使中国跻身拥有全球导航网络的国家之列，所以此处应是说几年后，北斗完成了全球组网，B 选项符合逻辑。 2. A：此段主要介绍北斗系统的功能，不仅能定位还能在无信号时发送短信，且已广泛应用于国际救援等，A 选项 “凭借其强大的性能，北斗系统可以提供满足不同需求的服务” 能总领该段内容。 3. D：前文提到在尼泊尔地震救援中北斗系统帮助很大，D 选项 “如果每个国家都使用北斗系统，我们的救援行动将更有效” 承接上文，进一步说明北斗系统在救援中的作用。 4. C：后文提到卫星定位的原理，且将北斗与 GPS 进行比较，C 选项 “GPS 和北斗使用相同的方法来确定位置” 引出后文关于定位原理及两者比较的内容。 5. E：前文说北斗不仅仅是一个系统，E 选项 “它展示了中国在科学技术方面的实力” 进一步阐述北斗系统的意义，符合语境。 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $$