2020-2021学年外研版英语必修第三册Unit6课时作业

　Period One Starting out & Understanding ideas Ⅰ. 单词拼写 1.He is fed by a

　 (管子) that enters his nose.

　 2.I"ll make an

　 (公告) when the time is right.

　 3.An active volcano could

　 (喷发) at any time!

　 4.It is said that the road ahead is blocked by a

　 (滑坡).

　 5.Charities appealed for donations of food and clothing to victims of the

　 (飓风).

　 6.Do you know the exact time when the incident o

　 7.We cannot f

　 the future, but we can create miracles.

　 8.Even a three-year-old child knows one p

　 one makes two.

　 9.She was worried about her sick child, so she hurried home i

　after work.

　 10.An earthquake is a kind of natural d

　, which often results in many people being injured or killed.

　 Ⅱ. 单句填空 1.It is known that iron can react

　 oxygen.

　 2.He is expected

　 (arrive) at 9 o"clock tomorrow.

　 3.Can you tell me

　 you will deal with the problem?

　 4.

　 (compare) with the earth, the sun is much larger.

　 5.The date of the move has not been

　 (definite) decided yet.

　 6.We must take

　 (immediately) action if we want to avoid further losses.

　 7.It occurred

　 me that I had left the door unlocked.

　 8.The volcano is still active, as evidenced by the recent

　 (erupt).

　 9.We have entered into an age

　 dreams have the best chance of coming true.

　10.Study is like

　 (sail) against the current; either you keep forging ahead or you keep falling behind.

　 Ⅲ. 短语填空 1.Don"t blame him.

　 (毕竟), he"s only a child.

　 2.

　 (既然) the work has been divided up, let each one get on with his own job.

　 3.You can"t change what happened, but you can change how you

　 (反应) it.

　 4.When the star

　 (走出去) the house, he found he was surrounded by a lot of his fans.

　5.I believe you have the ability to

　 (处理) all the problems.

　6.The student bent forward to

　 (拾起,捡起) a book from the floor.

　 7.

　 (一群) onlookers gathered at the scene of the crash.

　 8.

　 (浏览) newspapers every day and you can keep up with the rapidly developing situation.

　 9.He"s completely unafraid

　 (面对) difficulties.

　 10.

　 (与……比较) the living room, the bedroom is a more private place

　for resting and relaxing.

　Ⅳ. 句型训练 1.The project

　next month.

　这个项目预计下个月完成。

　2.Searching for one man in this big city is like

　 a needle in a haystack.

　在这座大城市里寻找一个人犹如大海捞针。

　3.The strength of an individual,

　that of the masses, is but a drop in the ocean.

　 个人的力量和群众的力量相比,不过是沧海一粟。

　4.

　, nothing remains to be said.

　 既然问题已经解决了,没什么可说的了。

　5.

　what to do, he went to his parents for help.

　由于不知道该怎么办,他去找他的父母帮忙。

　Ⅴ. 阅读理解 Earthquakes usually happen on the edges of large sections of the Earth"s plates. These plates slowly move over a long period of time. Sometimes the edges, which are called fault lines, can get stuck, but the plates keep moving. Pressure slowly starts to build up where the edges are stuck and, once the pressure gets strong enough, the plates will suddenly move causing an earthquake. Generally before and after a large earthquake there will be smaller earthquakes. The ones that happen before are called foreshocks. The ones that happen after are called aftershocks. Scientists don"t really know if an earthquake is a foreshock until the bigger earthquake occurs.

　Shock waves from an earthquake that travel through the ground are called seismic waves (地震波). They are most powerful at the centre of the earthquake, but they travel through much of the earth and back to the surface. They move quickly at 20 times the speed of sound. Scientists use seismic waves to measure how big an earthquake is. They use a device called a seismograph (地震仪) to measure the size of the waves. The size of the waves is called the magnitude.

　To tell the strength of an earthquake scientists use a scale called the Moment Magnitude Scale or MMS (it used to be called the Richter scale). The larger the number on the MMS scale, the larger the earthquake. You usually won"t even notice an earthquake unless it measures at least a 3 on the MMS scale. Here are some examples of what may happen depending on the scale: 4.0—Could shake your house as if a large truck were passing close by. Some people may not notice. 5.0—If you are in a car, it may shake. Glasses and dishes may rattle. Windows may break.

　6.0—Items will fall off shelves. Walls in some houses may crack and windows break. Pretty much everyone near the centre will feel this one. 7.0—Weaker buildings will collapse and cracks will occur in bridges and on the street.

　8.0—Many buildings and bridges fall down. Large cracks in the earth. 9.0 and up—Whole cities flattened and large-scale damage. (

　)1.If a 5.0-magnitude earthquake hit your area, what might happen? A.Your house might shake violently.

　B.People might feel no shaking at all. C.The family photo may fall off the wall.

　D.There might be cracks everywhere on the street. (

　)2.What does the author mean by saying the underlined sentence in Paragraph 2? A.It"s still hard to tell foreshocks from main earthquakes. B.Scientists can"t exactly measure the strength of an earthquake. C.People may ignore foreshocks when an earthquake is not so strong. D.The earthquake won"t cause any damage unless it reaches 9.0 MMS. (

　)3.The writer explains the concepts concerning the earthquake by

　.

　A.listing examples

　B.giving explanations C.making comparisons

　D.offering data (

　)4.The passage is written mainly to

　.

　A.enrich people"s knowledge of self-rescue in disasters B.stress the importance of the earthquake rescue C.issue early warnings before an earthquake D.present facts about the earthquake Ⅵ. 语法填空 阅读下面短文,在空白处填入 1 个适当的单词或括号内单词的正确形式。

　About 400 earthquakes happen worldwide every day, over a hundred thousand in a year. China is situated in one of the most active earthquake regions in the world and there have been many terrible earthquakes. The most serious of these 1.

　(occur) in Huaxian County in Shaanxi Province in 1556. The earthquake, 2.

　covered an area of 800 square kilometres, affected eight provinces in Central China. In some communities, 60 per cent of the population 3.

　 (kill). 4.

　all, 830,000 people lost their lives.

　The California Earthquake of April 18,1906 is 5.

　(probable) the worst earthquake that has ever happened in the United States. It took place at 5:12 am, and lasted for only a minute. 6.

　, it caused the worst natural disaster in the nation"s history. Fires, 7.

　 (cause) by the California Earthquake, did the most damage. The fires burned for three days, 8.

　 (destroy) a total of 25,000 buildings. About 500 people died in the city of San Francisco and about 225,000 were made 9.

　 (home). In the whole of California, the earthquake and fires caused about 3,000 10.

　 (death). One hundred years later, movements in these places continue to cause problems for the whole of California.

　参考答案

　Ⅰ.1. tube 2. announcement 3. erupt 4. landslide 5. hurricane 6. occurred 7. forecast 8. plus 9. immediately 10. disaster Ⅱ.1. with 2. to arrive 3. how 4. Compared 5. definitely 6. immediate 7. to 8. eruption 9. when 10. sailing Ⅲ.1. After all 2. Now that 3. react to 4. stepped out of 5. deal with 6. pick up 7. A crowd of 8. Look through 9. in the face of 10. Compared to Ⅳ.1. is expected to be finished 2. looking for 3.compared with 4. Now that the problem is solved 5. Not knowing Ⅴ.【文章大意】

　本文是一篇说明文,主要介绍了关于地震的相关事实,如地震产生的原因、大地震前后会有小地震、地震波的含义、地震强度的测量以及不同级别的地震可能会引发的后果。

　1.C 推理判断题。根据倒数第五段“5.0—If you are in a car, it may shake. Glasses and dishes may rattle. Windows may break.”可知,如果你在车里,它可能会摇晃。杯子和盘子可能会发出响声。窗户可能破碎。据此推断,如果你所在地区发生 5.0 级地震,全家福可能会从墙上掉下来。故选 C。

　2.A 词义猜测题。根据上文“Generally before and after a large earthquake there will be smaller earthquakes. The ones that happen before are called foreshocks. The ones that happen after are called aftershocks.”可知, 一般来说,大地震前后会有小地震。大地震之前发生的称为前震,之后发生的称为余震。据此推断,画线句子意思为“前震和主震仍然很难区分”。故选 A。

　3.B 推理判断题。根据第一段中“These plates slowly move over a long period of time. Sometimes the edges, which are called fault lines, can get stuck, but the plates keep moving. Pressure slowly starts to build up where the edges are stuck and, once the pressure gets strong enough, the plates will suddenly move causing an earthquake.”可知,本段主要在解释地震产生的原因,因此作者是通过解释的方式来介绍有关地震的概念的。故选 B。

　4.D 推理判断题。根据文章第一句“Earthquakes usually happen on the edges of large sections of the Earth"s plates.”以及后文内容(关于地震的相关知识)可知,这篇文章主要介绍了地震的相关事实。故选 D。

　Ⅵ.【文章大意】

　本文是一篇说明文。文章讲述了地震在世界各地发生频繁,并列举了在中国和美国历史上发生过的两次严重的地震。

　1.occurred 考查时态。根据时间状语 in 1556 可知,应用一般过去时。

　2.which 考查定语从句。空格处引导非限制性定语从句,先行词为物且定语从句缺少主语,故用 which。

　3.were killed 考查时态、语态和主谓一致。结合语境可知,空格处应用一般过去时。此处 population 指“人”,谓语动词应为复数形式,且 population 与 kill之间为被动关系,故用一般过去时的被动语态。

　4.In 考查介词。

　in all 表示“总共,总计”。

　5.probably 考查副词。空格处修饰 be 动词,应使用副词形式。

　6.However 考查副词。上下两句之间为转折关系,空格后有逗号,故应使用表转折关系的副词 however。

　7.caused 考查非谓语动词。cause 与 fires 之间为逻辑上的被动关系,故用过去分词作后置定语修饰 fires。

　8.destroying 考查非谓语动词。destroy 与 the fires 之间为逻辑上的主动关系,故用现在分词作结果状语。

　9.homeless 考查词形转换。根据语境可知,此处是指大约 225 000 人无家可归,应填homeless。

　10.deaths 考查名词复数。根据空格前的数字可知此处应使用名词复数。