1、Unit 5 Learning from nature Starting out&Understanding ideas2021-2022学年高二英语外研版（2019）选择性必修三同步课时作业一、句型转换1.They played so happily that they forgot the time. _ _ _ _ _ that they forgot the time.(含有so.that的倒装句）2.My mother didnt go to bed until I arrived home. _ _ _ _ I returned home _ my mother went to b
2、ed.(含有 not . until的强调句)Not until I returned home _ _ _ _ _ _ .(含有not until的倒装句)3.It appears that you have made a mistake.You _ _ _ _ a mistake.(appear to do)二、翻译题4.尽管健康状况不好，她仍继续执行任务。(省略)_, she continued to carry out the task.5.它的形状像一朵莲花，漂浮在海滨长廊上，四周被水环绕。Shaped to resemble a lotus flower, it _ _ _ abo
3、ve the waterfront promenade and the water that surrounds it.6.她想不出儿童节该送孩子们什么礼物，这使她很焦虑。(连接代词/副词+不定式)She couldnt think of _ for Childrens Day, which made her anxious.7.我有28本书，其中一半是由著名作家冰心写的。(介词+关系代词)I have 28 books, _ the famous writer Bing Xin.8.这些运动是为了强健肌肉而设计的。(design)These exercises _ muscles.三、七选五
4、 Radar is an electronic device that detects planes, ships, coastlines, landmarks, and even storm clouds. The name radar comes from the first letters of the words radio detection and ranging. As the human eye uses light waves to see, radar sees with radio waves. Without radar, planes could not land s
5、afely in bad weather and ships could not move safely in thick fog. _ In the 1800s it was discovered that radio waves could be reflected from objects. But scientists did not make great advances in radar research until the 1930s, when the world was threatened by war. _ It has been widely used in almos
6、t every conflict since then. Echoes make it possible for radar to work. When a beam of radio waves is sent out, it strikes an object and returns an echo. This echo is picked up by radar and recorded on a screen similar to a television screen. On the screen an observer sees a flash, or a blip that sh
7、ows the direction of the object and distance. _ Airport control towers use radar to guide planes in for safe landings. Almost all large ships depend on radar to prevent collisions with icebergs or other ships._ Weather forecasters see the size, direction, and speed of storms on radar screens. Astron
8、omers can even use radar to accurately measure the distance to the moon. Thus, the device has generated major advancements._ Huge radar antennas have been installed all over the United States. They guard us against possible enemy attacks. We have ballistic missiles (弹道导弹) warning systems that can al
9、ert us to attacks when missiles are more than 1,000 miles away. Other radar systems warn us against enemy aircraft and even spying space satellites.A.Police track speeders in radar-equipped cars.B.These measurements are now highly accurate.C.The device can be used in a wide range of fields.D.During
10、World War II many countries used radar effectively.E.It is therefore especially valuable to shippers and travelers.F.Today radar is used by commercial airliners and weather forecasters.G.Strengthening national defense is one of radars most important functions.四、语法填空Nature in Architecture Trees, plan
11、ts and flowers are all around us and we enjoy their _(beautiful) every day. Nature is presented in various architectural designs as well. People_ interest is exploring the relationship between art and science will enjoy Singapores ArtScience Museum. The building was designed _ (show) the connection
12、between nature and the modem city environment. Visitors are often amazed to find themselves in an urban building that so _ (true) captures the beauty of natural forms. Harares Eastgate Centre is _ superb example of biomimicry. Its architect Mick Pearce was inspired to create the Centre while _ (watc
13、h) a nature documentary in which termites were constructing their nests. The design reduces the need for _ (tradition) air conditioning and heating systems. The worlds first algae-powered building is in Hamburg, Germany, whose surface is covered in panels that contain algae. The panels capture heat
14、from the sun and convert it_ energy that powers the building. And the algae inside the panels can _ (harvest) and used to produce fuel. _ (create) buildings such as these enables us to live in closer harmony with our environment.答案以及解析一、1.答案：So happily did they play解析：句意:他们玩得如此开心以至于忘了时间。so.that. 意为“
15、如此以至”,改为倒装句时,将so置于句首,主句进行部分倒装。2.答案： It was not until, that did my mother go to bed解析： 句意: 直到我到家,我妈妈才去睡觉。含有not until的强调句结构为: It is/was+ not until引导的从句+that+句子剩余部分。含有not until的倒装句结构为:Not until+从句+助动词/情态动词/系动词be+主语+其他。3.答案：appear to have made解析：句意:你好像犯了个错误。appear后常跟不定式作宾语。二、4.答案：Although/Though/While i
16、n poor health解析：状语从句的省略需要具备下面两个条件:主句和从句的主语一致,或从句主语为it;从句谓语含有be的某种形式。此时,从句中的主语和be动词常可省略。故空处应填 Although/Though/While in poor health,从句补充完整为 Although/Though/While she was in poor health。 5.答案：appears to float6.答案：what to give children as presents解析：分析句子结构并根据提示可知,这里用“连接代词/副词+不定式”结构在句中作宾语,且根据句意可知,要用连接代词w
17、hat,故填what to give children as presents。 7.答案：half of which are written by解析：当关系代词在定语从句中作介词宾语时,我们通常用“介词+关系代词”引导定语从句。此处关系代词指“物”,故用“介词+which”引导定语从句。 8.答案：are designed to strengthen解析：be designed to do sth.“为做某事而设计”,为固定用法。 三、答案：- EDBAG解析：根据设空处前一句Without radar, planes could not land safely in bad weathe
18、r and ships could not move safely in thick fog.可知，雷达在飞机着陆和船只航海中起着巨大的作用，因此，雷达对航运商和旅行者特别有价值，故选E。在上文内容But scientists did not make great advances in radar research until the 1930s, when the world was threatened by war.中捕捉到关键词war，所以设空处的内容会涉及war，故D项在第二次世界大战期间，许多国家有效地使用了雷达符合本段内容，故选D。根据前一句On the screen an o
19、bserver sees a flash, or a blip that shows the direction of the object and distance.可知，在屏幕上，观察者看到显示物体的方向和距离的闪光或光点，现在这些测量值已经高度精确了。故选B。根据本段中的Almost all large ships depend on radar to prevent collisions with icebergs or other ships. _ Weather forecasters see the size, direction, and speed of storms or
20、radar screens. Astronomers can even use radar to accurately measure the distance to the moon.可知，这一段主要讲了雷达在各个领域的用途，A项为雷达对警察的作用，故选A。根据后文Huge radar antennas have been installed all over the United States. They guard us against possible enemy attacks. We have ballistic missiles（弹道导弹）warning systems that can alert us to attacks when missiles are more than 1,000 miles away. Other radar systems warn us against enemy aircraft and even spying space satellites.可知，这一段主要讲了雷达在国防领域的重要作用，故选G。四、答案：beauty ; whose ; to show; truly; a; watching ; traditional ; into ; be harvested; Creating
