1、Unit 2Section Welcome to the unit & Reading课时作业（原卷+答案）.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. Natural
2、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 mudrock flows, climatic events like storms, hurricanes or tornadoes and fire events like forest fires a
3、nd 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 pessi
4、mistic, 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 or de
5、aths 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 national
6、 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 manmade and natural disasters.Most natural disasters cannot be prevented, and both emergency preparation an
7、d 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.1According to th
8、e passage, both humankind and nature _Acan be managed orderlyBcan threaten human beingsCare hard to controlDhave a large family2Which cant be regarded as a similarity between tornadoes and earthquakes?AThey can not be prevented.BThey are both geological events.CThey are both the result of natural en
9、vironmental processes.DThey cause damage to people.3Why do natural disasters cause so much damage?AIt is very difficult to predict when exactly they will happen.BOur forecasting equipment is too old for many natural disasters.CWe dont do enough preparation before natural disasters strike.DWe dont ha
10、ve the necessary public services to use after natural disasters strike.4What can be concluded from the passage?ANatural disasters can not be predicted at all.BHuman beings are pessimistic about the future.CBeing wellprepared can avoid economic losses.DGood preparation and disaster management are adv
11、isable.B Almost 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 storms the seas would seem to become static (静
12、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 rises into the storm clouds, it cools and ac
13、ts 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 air is stable, so once it covers an area,
14、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 working out how far away a storm is. First
15、 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 below thirty seconds, you should seek shelter s
16、traight 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 reports for any predictions regarding a com
17、ing storm in your area. Thats the most reliable and sensible way to predict the next display of natures temper.5What does the 3rd paragraph mainly tell us?AHow a storm comes into being.BWhy research is done on storm clouds.CWhy a peaceful period occurs before a storm.DHow dangerous a storm can be in
18、 certain situations.6How far away is the storm if you count 18 seconds between a flash of lightning and a thunderclap?AAbout three kilometers. BAbout four kilometers.CAbout five kilometers. DAbout six kilometers.7What can we learn according to the last paragraph?AStorms have a big influence on life.
19、BIt is not always quiet before a storm.CWeather reports may fail to predict a storm.DHeavy storms dont usually last for a long time.8Where is the text probably taken from?AA science report. BA weather report.CA travel guide. DAn advertisement.完形填空In the morning, Slim got up and prepared breakfast fo
20、r his wife as usual. Nicole, his wife, was listening to music in the bedroom. _1_， he felt that his body was shaking. Slim had the rapid response that there was an earthquake! He _2_ quickly, “Dear, earthquake! Go to the toilet！” Nicole heard the shouting, took up the first aid box quickly and ran i
21、nto 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. However, it got _5_ suddenly with an explosion. The house _6_ down and many
22、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 shouted to him but no _10_！ He probably fainted. Nicole kept saying h
23、is 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 with the kitchen knife. He felt _13_ from his fingers. Finally,
24、he removed the last piece of larger stones. Slim touched one of Nicoles hands, and then dug the _14_ stones of her body. Finally, Nicole had a _15_ breathing slowly. The two people sat on the ground and hugged together.1A.Suddenly BActuallyCUnfortunately DReally2A.warned BfrightenedCjumped Dshouted3
25、A.burning BshakingCfalling Dmoving4A.tool BcookCfork Dknife5A.bright BcloudyCdark Dblank6A.lay BcrashedCbroke Dbent7A.ruins BashesCdirt Dpieces8A.senseless BimpracticalCimpossible Dinvaluable9A.steps BbreathCmovements Dpauses10A.response BsignChope Dresult11A.touched BheldCcalmed Dcalled12A.wrapped
26、BseparatedCfastened Dlimited13A.pain BcoldCwater Dwarmth14A.sticking BdealingCsurrounding Dspreading15A.complete BconstantCsteady Dweak参考答案.阅读理解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 humankind it
27、self, 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 exactly when
28、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，并介绍了一个计算暴风雨距离的小窍门。
29、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。故选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 many seconds there are be
30、tween 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，则18秒约等于6千米。故选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 storm 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。故选B项。8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
31、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。故选A项。.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；frighten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
32、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”。7答案与解析：ANicole很快被埋在了废墟中。ruins废墟；ash灰烬； dirt尘土； pieces碎片。8答案与解析：C已经被埋，想站起
33、来是不可能的。senseless无意义的；impractical不切实际的；impossible不可能的；invaluable非常宝贵的。9答案与解析：Bshort breath“短促的呼吸”，符合语境。step步伐；breath呼吸；movement移动；pause停顿。10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。11答案与解析：C与前面的“鼓励”构成并列关系，此处只能表示“安慰，让对方镇静下来”。touch接触；held握住，举行；calm使镇静；call打电话。12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。13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。14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。15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。
