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1、Unit 2 Section I Welcome to the unit & Reading课时作业(原卷+答案)I .阅读理解AWhat is the greatest threat to mankind? Maybe different people come up with different answers. However, there is no denying the fact that the only threat to humankind, apart from humankind itself, is, without any doubt, the nature. Nat
2、ural disasters are the result of natural environmental processes that have a damaging effect on people. Natural disasters can come in many forms: such as geological events like earthquakes, tsunamis or mud-rock flows, climatic events like storms, hurricanes or tornadoes and fire events like forest f
3、ires and wildfires.The damage done by natural disasters is mainly as a result of our inability to predict exactly when they will happen. Although great progress has been made in designing and developing forecasting models for some natural disasters, complete certainty is still impossible. Even to be
4、 pessimistic, there is a possibility that human beings will never achieve accurate prediction of the happening of all natural disasters.Whats more, even though we are able to predict these disasters from nature, preventing them is equally impossible. So we only have two ways to both prevent injuries
5、 or deaths and reduce economic losses to the least. These two methods are to prepare before a natural disaster comes to hit, and to manage the necessary resources and public services after a natural disaster strikes.These two things have always been at the leading position of the projects of both na
6、tional governments and international organizations. In the United States, the Federal Emergency Management Agency (FEMA) is responsible for the preparedness, response and recovery planning“ of both man-made and natural disasters.Most natural disasters cannot be prevented, and both emergency preparat
7、ion and good disaster management are the best ways to deal with them. Although natural events may appear to serve no purpose but simply to punish and destroy, natural disasters, a perfect symbol of the great power of the nature, are display of our planets evolution and its state of change.1. Accordi
8、ng to the passage, both humankind and nature.A. can be managed orderlyB. can threaten human beingsC. are hard to controlD. have a large family2. Which cant be regarded as a similarity between tornadoes and earthquakes?A. They can not be prevented.B , They are both geological events.C. They are both
9、the result of natural environmental processes.D. They cause damage to people.3. Why do natural disasters cause so much damage?A. It is very difficult to predict when exactly they will happen.B. Our forecasting equipment is too old for many natural disasters.C. We dont do enough preparation before na
10、tural disasters strike.D. We dont have the necessary public services to use after natural disasters strike.4. What can be concluded from the passage?A. Natural disasters can not be predicted at all.B - Human beings are pessimistic about the future.C. Being well-prepared can avoid economic losses.D.
11、Good preparation and disaster management are advisable.BAlmost everyone has heard the expression, the calm before the storm”. It is usually used to describe a peaceful period just before a very stressful situation or a tense argument.British sailors coined the phrase. They noted that before certain
12、storms the seas would seem to become static （静止的）and the winds would drop. But why is it often so calm before a storm?According to the US website How Stuff Works, a calm period occurs because many storms, tornadoes and hurricanes draw in all the warm and wet air from the surrounding area. As the air
13、 rises into the storm clouds, it cools and acts as fuel for the storm, like petrol in a car. Once the storm has taken all the energy it can from the air, it is pushed out from the top of the storm clouds and falls back down to ground level. As the air goes down, it becomes warm and dry. Warm and dry
14、 air is stable, so once it covers an area, it causes a calm period before the storm.This same process also causes the “eye of the storm“ in hurricanes and tornadoes. In these conditions, the calm occurs in the center of the storm because of the strong circling winds.The Weather Network has a tip for
15、 working out how far away a storm is. First count how many seconds there are between a flash of lightning and a clap of thunder, roughly three seconds equal one kilometer. So, for example, if you count nine seconds, the storm is about three kilometers away. A good judge is that if your count is belo
16、w thirty seconds, you should seek shelter straight away.However, due to the complexity of storm system, not all storms are preceded （先于）by the calm. Given the right conditions, some storms announce themselves with heavy rain and icy winds. So, your best bet is to keep yourself updated with weather r
17、eports for any predictions regarding a coming storm in your area. Thats the most reliable and sensible way to predict the next display of natures temper.5 . What does the 3rd paragraph mainly tell us?A. How a storm comes into being.B Why research is done on storm clouds.C. Why a peaceful period occu
18、rs before a storm.D. How dangerous a storm can be in certain situations.6. How far away is the storm if you count 18 seconds between a flash of lightning and a thunderclap?A. About three kilometers.B. About four kilometers.C. About five kilometers.D. About six kilometers.7. What can we learn accordi
19、ng to the last paragraph?A. Storms have a big influence on life.8. It is not always quiet before a storm.9. Weather reports may fail to predict a storm.10. Heavy storms dont usually last for a long time.8 . Where is the text probably taken from?A. A science report. B. A weather report.C. A travel gu
20、ide. D. An advertisement.IL完形填空In the morning, Slim got up and prepared breakfast for his wife as usual. Nicole, his wife, was listening to music in the bedroom. , he felt that his body was shaking. Slim had the rapid response that there was an earthquake! He 2 quickly, uDear, earthquake! Go to the
21、toilet! ” Nicole heard the shouting, took up the first aid box quickly and ran into the toilet. The house was 3 even more violently.The bathroom was the next door to the kitchen. Slim picked up a kitchen 4 and two pieces of bread outside the kitchen. Slim tried to run along the wall to help Nicole.
22、However, it got 5 suddenly with an explosion. The house down and many things fell from above. Nicole was quickly buried in 7 , She felt breathing very difficult. She tried to stand up, but 8 .A few minutes later, the land was silent. Nicole heard the sound of short 9 and thought it was Slim! She sho
23、uted to him but no 10 ! He probably fainted. Nicole kept saying his name and she finally heard a response. The two people encouraged and 11 each other. They knew that there must be a way to escape.Slim found that they were close and were 12 by the fallen stones and some powder. He started to dig wit
24、h the kitchen knife. He felt j 3 from his fingers. Finally, he removed the last piece of larger stones. Slim touched one of Nicoles hands, and then dug the 14 stones of herbody. Finally, Nicole had a hugged together.15 breathing slowly. The two people sat on the ground and1.C.2.C.3.C.4.C.5.C.6.C.7.C
25、.8.C.9.C.10.c.11.12.C.13.C.14.C.15.C.16.C.17.C.18.C.19.C.20.C.21.c.22.A.Suddenly Unfortunately A.warned jumped A.burning falling A.tool forkA.bright darkA.lay broke A.ruins dirt A.senseless impossible A.steps movementsA.response hopeB. ActuallyD. ReallyB frightenedD. shoutedB shakingD. movingB- cook
26、D. knifeB . cloudyD. blankB , crashedD. bentB ashesD. piecesB impracticalD. invaluableB . breathD. pausesB - signD. resultB. heldA.touchedC. calmed12. A.wrapped C fastened13. A.pain C. water14. A.sticking C. surrounding15. A plete C. steadyI .阅读理解C. calmed16. A.wrapped C fastened17. A.pain C. water1
27、8. A.sticking C. surrounding19. A plete C. steadyI .阅读理解D. calledB separatedD. limitedB. coldD. warmthB dealingD spreadingB constantD - weak参考答案A【语篇解读】 本文是一篇说明文。自然是人类除了自己之外的最大的威胁，在自然的力量 面前，人类显得那么渺小和无助。本文主要讲述人类与自然灾害之间的种种交织。1 .答案与解析：B 细节理解题。根据第一段中“that the only threat to humankind, apart from humankin
28、d itself, is, without any doubt, the nature.“可确定答案。2 .答案与解析：B 细节理解题。根据第一段中的“geological events like earthquakes”和 “climatic events like storms, hurricanes or tornadoes”可知，龙卷风和地震并非都是地质事件。3 .答案与解析：A 细节理解题。根据第二段第一句The damage done by natural disasters is mainly as a result of our inability to predict exa
29、ctly when they will happen.”可知， 自然灾害造成 如此大的损失的原因是我们无法准确预测它们何时会发生。4 .答案与解析：D 推理判断题。由最后一段中的“Most natural disasters cannot be prevented, and both emergency preparation and good disaster management are the best ways to deal with them.”可推知，良好的准备和灾害管理是明智的。B【语篇解读】本文是一篇社会文化类阅读。文章解释了暴风雨来临前，海面变得平静，风力减弱的原因，并介绍
30、了一个计算暴风雨距离的小窍门。5 .答案与解析：C 考查段落大意。根据第三段中的“According to the US website How Stuff Works, a calm period occurs because many storms, tornadoes and hurricanes draw in all the warm and wet air from the surrounding area”以及下文可知，第三段主要告诉我们为什么暴风雨来临 前会有一段平静的时期。应选C项。6 .答案与解析：D 考查推理判断。根据倒数第二段中的“First count how man
31、y seconds there are between a flash of lightning and a clap of thunder, roughly three seconds equal one kilometer” 可知，闪电与雷声之间的间隔时长三秒约等于一千米，那么18秒约等于6千米。应选D项。7 .答案与解析:B 考查细节理解。根据最后一段中的“However, due to the complexity of stonn system, not all storms are preceded （先于）by the calm”可知，暴风雨来临前并非总是宁静的。 应选B项。8
32、.答案与解析：A 考查推理判断。文章主要说明了暴风雨来临前的宁静的原因，以及如 何计算暴风雨距离，由此可推测文章选自一份科学报告。应选A项。H.完形填空【语篇解读】本文是一篇记叙文。文章描述了在一次地震中，一对夫妻互相鼓励、互相帮助，一起战胜困难，最终幸免于难的感人的故事。1 .答案与解析：A 根据文意判断，地震的发生是很突然的。suddenly突然地；actually实 际上；unfortunately不幸地；really真实地，确实。2 .答案与解析： D 丈夫大声呼喊，让妻子到洗手间躲避地震。下文的shouting也有暗示。 warn警告，往往指事情发生之前的行为，不符合语境；frigh
33、ten惊吓；jump跳；shout大喊 大叫。3 .答案与解析：B根据语境可知，房子在地震中剧烈地摇晃起来。burn燃烧；shake摇晃; fall倒塌；move移动。4 .答案与解析：D 最后一段有提示，丈夫用刀子在废墟中挖掘，寻找妻子。tool工具；cook 厨师；fork叉；knife刀子。5 .答案与解析：C根据后文可知，突然的爆炸使得周围漆黑一片。bright明亮的；cloudy 多云的；dark漆黑的；blank空白的，茫然的。6 .答案与解析：B 此处指房子轰然倒塌。crash当“撞碎讲，符合语境。break down的意 思是“中断,分解.答案与解析：A Nicole很快被埋在
34、了废墟中。ruins废墟；ash灰烬；dirt尘土； pieces 碎片。7 .答案与解析：C 已经被埋，想站起来是不可能的。senseless无意义的；impractical不切 实际的；impossible不可能的；invaluable非常珍贵的。8 .答案与解析：B short breath”短促的呼吸”，符合语境。st叩步伐；breath呼吸；movement 移动；pause停顿。9 .答案与解析：A由下一句句意“他可能昏过去了”可知，妻子呼唤丈夫，但丈夫没有应 答。response回应；sign迹象；hope希望；result结果。10 .答案与解析：C与前面的“鼓励”构成并列关系
35、，此处只能表示“抚慰，让对方镇静下来”。 touch接触；held握住，举行；calm使镇静；call打 。11 .答案与解析：B根据前文“两人挨得很近”可知，此处强调两人被碎石等隔开。wrap包 裹,缠绕；separate分开;fasten系牢；limit限制。12 .答案与解析：A 丈夫使劲在废墟中挖掘，手指都疼了。pain疼痛；cold寒冷；water 水；warmth温暖。13 .答案与解析：C 最后丈夫把围在妻子身边的碎石清理掉。stick刺，粘贴；deal处理； surround 围绕；spread 扩散。14 .答案与解析:C丈夫把妻子从废墟中解救了出来，因此她的呼吸开始变得平稳。complete 完全的；constant不断的；steady平稳的；weak虚弱的。