1、4.3 新提升课时作业.用适当的代词填空1It was _ he said at the meeting last night _ made me angry.2Wasnt it Dr Wang _ spoke to you just now?3It was not until I reached there _ I began to know something about the matter.4It was there, the police believe, _ she was able to activate the recorder she kept in her bag.5It
2、is _ he often breaks the school rules _ makes his head teacher unsatisfied with him.6It is because English is being widely used at present _ we learn _ hard.7Was it _ he said or something _ he did _ made you cry so sadly，Sarah?No, not really.8Why is _ _ so many people think that being perfect is the
3、 way to go?9_ was the first time that I had swum this year.10_ will be two years before we meet again.11_ is years since I began to learn English.12_ is six oclock when I go home from school every day.答案：1.what; that 2.who/that 3.that 4.that5that; that 6.that; it 7.what; that; that 8.it that9It 10.I
4、t 11.It 12.It.翻译句子(用强调句型)1是人类的活动导致了全球变暖。_2直到晚上 10 点，他才完成任务。_3只有当你完成作业后，你才能出去玩耍。_4我们所深爱的是妈妈。_5是在车站我见到了他。_6到底是什么引起了森林大火？_答案：1It is human activity that has caused global warming.2It was not until 10 pm. that he finished the task.3It is only when you finish your homework that can you go out to play.4Its
5、 mum who that we love deeply.5It was at the station that I met him.6What was it that caused the forest fire?.单句改错1It was only when I reread his poems recently so I began to appreciate their beauty._2It was in Qingdao where I saw the sea for the first time._3It was because the bad weather that the fo
6、otball match had to be put off._4It is I who is going to be sent there to help them._5It was her that told me about it._答案：1sothat 2.wherethat 3.because 之后加 of4第二个 isam 5.hershe.阅读理解AA rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year a
7、nd the temperature rarely dipping below 16. Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the rainforest cover, these areas would reflect more heat into the atmosphere, warming the rest of the world. Losing the rai
8、nforests may also influence wind and rainfall patterns, potentially causing certain natural disasters all over the world.In the past hundred years, humans have begun destroying rainforests in search of three major resources(资源): land for crops, wood for paper and other products, land for raising far
9、m animals. This action affects the environment as a whole. For example，a lot of carbon dioxide(二氧化碳) in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.There are two main reasons f
10、or this. Firstly, when people cut down trees, generally they can only use the land for a year or two. Secondly, cutting large sections of rainforests may provide a good supply of wood right now, but in the long run it actually reduces the worlds wood supply.Rainforests are often called the worlds dr
11、ug store. More than 25% of the medicines we use today come from plants in rainforests. However, fewer than 1% of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the worlds shrinking rainforests.1Rainforests
12、can help to adjust the climate because they _.Areflect more heat into the atmosphereBbring about high rainfall throughout the worldCrarely cause the temperature to drop lower than 16Dreduce the effect of heat from the sun on the earth2What does the underlined word “this” in the third paragraph refer
13、 to?AWe will lose much more than we can gain.BHumans have begun destroying rainforests.CPeople have a strong desire for resources.DMuch carbon dioxide comes from burning rainforests.3It can be inferred from the text that _.Awe can get enough resources without rainforestsBthere is great medicine pote
14、ntial in rainforestsCwe will grow fewer kinds of crops in the gained landDthe level of annual rainfall affects wind patterns4What might be the best title for the text?AHow to Save RainforestsBHow to Protect NatureCRainforests and the EnvironmentDRainforests and Medical Development答案与解析：1解析：推理判断题。由文章
15、第一段第二句可以看出热带雨林对气候的调节作用。答案：D2解析：词义猜测题。从第二段最后一句和下文的叙述可知 this 指的是人类损失的要比得到的多得多。答案：A3解析：推理判断题。由文章最后一段内容可知热带雨林蕴含着巨大的药用潜力。答案：B4解析：主旨大意题。整篇文章主要论述了热带雨林的重要作用以及砍伐热带雨林对环境所造成的影响。答案：CBWe already know the fastest, least expensive way to slow climate change: use less energy. With a little effort, and not much mone
16、y, most of us could reduce our energy diets by 25 percent or more doing the Earth a favor while also helping our wallets.Not long ago，my wife, PJ, and I tried a new dietnot to lose a little weight but to answer an annoying question about climate change. Scientists have reported recently that the wor
17、ld is heating up even faster than predicted only a few years ago, and that the consequences could be severe if we dont keep reducing emissions(排放) of carbon dioxide (CO2) and other greenhouse gases that are trapping heat in our atmosphere.We decided to try an experiment. For one month we recorded ou
18、r personal emissions of CO2. We wanted to see how much we could cut back, so we went on a strict diet. The average US household(家庭 ) produces about 150 pounds of CO2 a day by doing common things like turning on airconditioning or driving cars. Thats more than twice the European average and almost fi
19、ve times the global average, mostly because Americans drive more and have bigger houses. But how much should we try to reduce?For an answer，I checked with Tim Flannery, author of The Weather Makers: How Man Is Changing the Climate and What It Means for Life on the Earth. In his book, he had challeng
20、ed readers to make deep cuts in personal emissions to keep the world from reaching extremely important tipping_points，such as the melting(融化) of the ice sheets in Greenland of West Antarctica. “To stay below that point, we need to reduce CO2 emissions by 80 percent， ” he said.Good advice， I thought.
21、 Wed gotten so used to keeping our airconditioning going around the clock. Id almost forgotten the windows even opened. We should not let this happen again. Its time for us to change our habits if necessary.5Why did the author and his wife try a new diet?ATo take special kinds of food.BTo respond to
22、 climate change.CTo lose weight.DTo improve their health.6The underlined words “tipping points” most probably refer to“_”Afreezing pointsBburning pointsCmelting points Dboiling points7It can be inferred from the passage that _.Ait is necessary to keep the airconditioning on all the timeBit seems pos
23、sible for every household to cut emissions of CO2Cthe average US household produces about 3, 000 pounds of CO2 a monthDthe average European household produces about 1,000 pounds of CO2 a month8Which of the following would be the best title for this passage?ASaving Energy Starts at HomeBChanging Our
24、Habits Begins at WorkCChanging Climate Sounds ReasonableDReducing Emissions of CO2 Proves Difficult答案与解析：5解析：细节理解题。依据文章第二段中的“not to lose a little weight but to answer an annoying question about climate change.”可知作者这么做的目的是答复一个令人烦恼的气候变化问题。答案：B6解析：词义猜测题。在他的书中，他要读者大幅减少个人温室气体排放量，以免世界来到“引爆的临界点” ，下面给出的例子“s
25、uch as the melting of the ice sheets in Greenland of West Antarctica”，可以判断出 C 项正确。答案：C7解析：推理判断题。由第一段和最后一段可知大多数人可以减少能源消耗与温室气体的排放量。故选 B。答案：B8解析：主旨大意题。文章作者通过讲述自己一家人切实有效的减少温室气体排放量的行动，向我们证明了：节约能源从家庭做起，从我做起。故 A 项正确。答案：A.短文改错I firmly believe that everyone in the world loves his mother. So am I. My mother i
26、s an ordinary teacher. She always works hardly, just as other mothers do every day. In fact, she isnt good health.She had been suffering from arthritis for many years. In spite of this, he never stops working or gives up hope. I still remember the day that my mother accepted a card of congratulation
27、s for Teachers Day from her director. The card was read “Thank you for your hard works. Happy Teachers Day to you！” At that moment, she was so moving that tears came to her eyes.I am proud of my mother.答案：I firmly believe that everyone in the world loves his mother. So I. My mother is an amdoordinar
28、y teacher. She always works ， just as other mothers do every day. In fact, she isnt hardlyhardgood health.inShe been suffering from arthritis for many years. In spite of this, never stops working hadhas he sheor gives up hope. I still remember the day my mother a card of congratulations for thatwhen accepted receivedTeachers Day from her director. The card read “Thank you for your hard . Happy s worksworkTeachers Day to you！” At that moment, she was so that tears came to her eyes.I am movingovedproud of my mother.
