（新教材）2021-2022学年人教版英语必修第一册作业课件：UNIT 4　NATURAL DISASTERS 高效作业23 PERIODⅢ　DISCOVERINGUSEFULSTRUCTURES .ppt

1、Unit 4Natural DisastersPeriod Listening and Speaking.单句填空1Whenever she goes out with her baby,she always takes a larges_of baby food with her.2The government has supplied plenty of food and medicine _the local people since the earthquake broke out.3Id like to know the reason why milk is _short suppl

2、y in this area now.4A volcanic e_buried everything in its path.5The baby was born with a heart problem and only s_ for a few hours.upplytoinruptionurvived.用关系代词填空1Do you know the professor_will give us a speech next week?2I read a report about his new novel _will soon be published.3The plan _they ar

3、gued about turned out to be a success.4This is the new secretary _ I would like to introduce to you.who/thatthat/whichthat/whichwho/whom/that5The soldier _legs were badly wounded was operated on without delay.6Do you know the things and people _they are talking about?7Who is the woman _was praised a

4、t the meeting?8One _has nothing to fear dares to tell the truth.9Those _were not fit for their work could not see the beautiful clothes made of the magic cloth.10My teachers advise me to repeat the materials several times and read them aloud,_they think will help improve my memory.whosethatthatwhowh

5、owhich用定语从句翻译以下句子1我的确有几条建议需要你注意。I do have a few suggestions_ _2根据一项调查，能说两种语言的人能够更容易地同时处理两件事。According to a survey,people _ _can manage two things at the same time more easily.3然而，一些课文有太多的新单词和短语，这对我们来说是一个很大的挑战。However,some of the texts have too many new words and expressions,_4我们学校建了一座新体育馆，它成了我们学校的地标

6、。Our school has built a new stadium,_ _which is a big challenge to us5那是一个黑色的皮钱包，里面有大约200美元和我的身份证。It is a black leather wallet _ _6一句多译：从这里你可以看到屋顶的那座建筑物，是一家新开的餐馆。The building _roof you can see from here is a new restaurant.The building,the roof of _you can see from here is a new restaurant.The build

7、ing,_the roof you can see from here is a new restaurant.whosewhichof which.阅读理解阅读下面短文，从每题所给的 A、B、C 和 D 四个选项中，选出最佳选项。The Boy Made It!One Sunday，Nicholas，a teenager，went skiing at Sugarloaf Mountain in Maine.In the early afternoon，when he was planning to go home，a strong snowstorm swept into thearea.U

8、nable to see far,he turned off the path by accident.Before he knew it，Nicholas was lost，all alone！He didnt have food,water,a phone,or other supplies.He was getting colder by the minute.Nicholas had no idea where he was.He tried not to panic.Hethought about all the survival shows he had watched on TV

9、.It was time to put the tips he had learned into use.He decided to stop skiing.There was a better chance of someone finding him if he stayed where he was.The first thing he did was to find a shelter from the freezing wind and snow.Usinghis skis，Nicholas built a snow cave.He gathered a huge mass ofsn

10、ow and dug out a hole in the middle.Then he piled branches on top of himself,like a blanket,to stay as warm as he could.Hehuddled(蜷缩着身体)in his cave and slept.The next day,Nicholas went out to look for help，but he couldnt find anyone.He followed his tracks and returned to the snow cave,because withou

11、t shelter,he could die that night.OnTuesday，Nicholas went out again to find help and he was found by a volunteer searcher.After two days stuck in the snow，Nicholas was saved.Nicholas might not have survived this snowstorm had it not been for TV.He had often watched Grylls survival show Man vs.Wild.T

12、hats where he learned the tips that saved his life.In each episode(一期节目)of Man vs.Wild，Grylls is abandoned(遗弃)in a wild area and has to find his way out.When Grylls heard about Nicholas amazing deeds，he was impressed that Nicholas had made it since he knew better than anyone how hard Nicholas had to

13、 work to stay alive.()1What happened to Nicholas one Sunday afternoon?AHe got lost.BHe broke his skis.CHe hurt his eyes.DHe caught a cold.()2How did Nicholas keep himself warm?AHe found a shelter.BHe lighted some branches.CHe kept on skiing.DHe built a snow cave.AD()3Nicholas left Grylls with a very

14、 deep impression because he _ Adid the right things in the dangerous situation Bwatched Grylls TV programme regularly Ccreated some tips for survival Dwas very hardworkingA答案及解析：【语篇解读】本文是一篇记叙文。讲的是一个青少年在暴风雪中迷路，他不畏艰难，利用在电视中学到的野外生存知识逃脱困境的故事。1A 细节理解题。根据第一段中的“Before he knew it，Nicholas was lost，all alone

15、！”可知，尼古拉斯要返回时遇到了暴风雪，看不清路，所以迷路了。2D 细节理解题。根据第三段中的“Using his skis，Nicholas built a snow cave.”和“Then he piled branches on top of himself，like a blanket，to stay as warm as he could”可知，为了保暖他挖了一个雪洞。3A 推理判断题。根据最后一段可知，尼古拉斯经常观看一档荒野求生节目并从中学到了很多求生的知识，结合最后一句可知，Grylls认为尼古拉斯得以生存是因为他知道如何自救，所以选A项。.七选五根据短文内容，从短文后的选项

16、中选出能填入空白处的最佳选项。选项中有两项为多余选项。A volcano is a geological landform usually caused by the eruption through a vent(火山口)in a planets surface of magma(岩浆),molten rock welling up from the planets interior.1_A popular way of judging volcanoes goes by their frequency(频率)of eruption.2_Those that have erupted in

17、historic times but are now quiet are dormant(休眠的)and those that have not erupted in historic times are extinct.GB3_The lifespan of a volcano can vary from months to several million years,making such a distinction(区别)sometimes meaningless when compared to the lifespans of humans or even civilisations

18、.For example,many of the earths volcanoes have erupted dozens of times in the past few thousand years but are not currently showing signs of eruption.Given the long lifespan of such volcanoes,they are very active.4_FAScientists usually consider a volcano active if it is currently erupting or showing

19、 signs of unrest，such as unusual earthquake activity or significant new gas emissions.5_It is important to note that the span of recorded history differs from region to region.In the Mediterranean，recorded history reaches back more than 3，000 years but in the Pacific Northwest of the United States,i

20、t reaches back less than 300 years,and in Hawaii,little more than 200 years.TheSmithsonian Global Volcanism programmes definition of“active”is having erupted within the last 10，000 years.EABy our lifespans,however,they are not.BThose that erupt regularly are active.COne way of classifying volcanoes

21、is by the type of material erupted.DObviously，such eruptions tend to be destructive mainly in one direction.EMany scientists also consider a volcano active if it has erupted in historic times.FThere is no real agreement among volcanologists on how to define an“active”volcano.GVolcanoes of various ty

22、pes are found on other planets and their moons as well as on the earth.答案及解析：【语篇导读】本文介绍了火山的分类以及对活火山的不同界定。1G 根据第二段中提到的火山的三种类型可知，所填的句子是引出下文的过渡句，G项符合语境。2B 根据下文的“Thoseand those”可知，此处介绍的是火山的三种类型，所填的句子和后面的句子是并列关系，所以选B项。3F 所填的句子是本段的主题句。本段主要介绍的是活火山。按照火山的寿命来看，它是活火山；按照人类的寿命来看，它不是，因此对于活火山的概念，火山学家的意见不一致。所以选F项。4

23、A 与上文的“Given the long lifespan of such volcanoes，they are very active.”形成对比，所以选A项。5E 根据“Scientists usually consider a volcano active”可知，E项是对上文的进一步说明。.语法填空阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。Dirty water rose in the wells and canals before the earthquake.But no one judged that an earthquake was coming

24、.1_(sudden),everything shook.It seemed as if the world was 2_ an end.Millions of brick houses and a number of dams 3 _(destroy).Railway tracks became useless bars.Pipes in mines burst and let out smelly steam.Cyclists were trapped in huge cracks everywhere.Suddenlyatwere destroyedThe next day,this e

25、vent was the headline or main title of all newspapers.With the reporters 4_(give)an outline of the disaster,the whole nation was shocked by the damage and the victims extreme 5_(suffer).People were moved 6 _ they read that the 7 _(survive)comforted each other by saying“Congratulations!You survived！”

26、So they not only expressed their sympathy sincerely,but also organised together 8_(help)the victims right away.The injured were rescued and the dead 9_(be)buried.The 10_(frighten)survivors were dug out from under the ruins and were offered shelter,drinking water and electricity.Thanks to peoples hel

27、p,the loss was minimized.givingsufferingwhensurvivorsto helpwerefrightened答案及解析：【语篇解读】本文是一篇记叙文，作者讲述了一次可怕的地震经历。地震给人们的生命和财产造成了巨大的损害，但是人们团结一心，互帮互助，共同渡过难关。1Suddenly 考查副词。suddenly意为“立刻，马上”，放句首，修饰句子，作状语。2at 考查介词。句意为：刹那间，一切都在摇晃，似乎整个世界就要结束。at an end为固定搭配，意为“结束，终结”，at an end在句中不能单独作谓语，要与be动词连用。3were destroye

28、d 考查动词的语态、时态和主谓一致。句意为：数百万的砖房和许多水坝遭到破坏。砖房和水坝是被破坏的，结合上下文语境，要用一般过去时的被动语态。主语为数百万的砖房和许多水坝，故填were destroyed。4giving 考查非谓语动词。此处考查with的复合结构，其构成为：with宾语宾语补足语，reporters和give之间是主谓关系，因此用give的现在分词形式。5suffering 考查名词。被作定语的形容词extreme修饰，用名词形式。句意为：全国都被地震带来的破坏和灾民们极度的苦难所震惊。suffering为suffer的名词形式，意为“痛苦，苦难”。6when 考查连词。句意为

29、：当人们读到幸存者以“恭喜啊，你还活着。”来互相安慰时，都被感动了。7survivors 考查名词。survivor为动词survive的名词形式，由句意可知，幸存者是很多人，故用名词的复数形式。8to help 考查非谓语动词。句意为：因此他们不仅衷心地表达了他们的同情，而且还立刻组织起来帮助灾民。人们组织起来的目的是帮助灾民，to help在句中作目的状语。9were 考查主谓一致和时态。句意为：伤员被救出了，死者被埋葬了。the dead表示一类人，谓语动词要用复数形式，由上下文语境可知，要用一般过去时。10frightened 考查形容词。句意为：吓坏的幸存者被从废墟中挖出来了，住处、饮用水和电力也很快得到提供。frightened为形容词，作定语，修饰名词survivors。