Unit 22 Environmental Protection Section .單句語法填空1Not only _ I know her, but I was her best friend.2He said that the Christmas tree _(buy) soon.3You can easily get access _ the humorous old man.4He fixed his attention on _(listen) to the morning news.5At no time _ the country been more prosperous than at present.【答案】1.did2.would be bought3.to4listening5.has.單句改錯1The naughty boy was made do his homework._2Not only the students but also the teacher like holidays._3The only access of the city is across the bridge._4My new house is painted now. _5These problems should have solved months ago._【答案】1.do前加to2.like改為likes3.of改為to4.is后加being5.have后加been.閱讀理解Alaskas Arctic lakes now freeze later and melt earlier in the year than in 1950，leaving them easy to suffer water loss from evaporation(蒸發(fā))and possibly adding to local warming, a new study finds.The winter ice season near Barrow, Alaska, is shorter than in 1950, researchers reported Jan.30 in the journal The Cryosphere.Lake ice is also thinner each winter.The scientists surveyed 402 lakes on the North Slope，where permafrost (permanently frozen ground)and shallow lakes dominate the area.In 2011, the lake ice was 38 percent thinner than in 1950, and 22 percent fewer lakes froze through to their bottoms.“When we saw the actual numbers we were shocked at how dramatic the change has been，” lead study author Cristina Surdu, of the University of Waterloo in Canada，said in a statement.Surdu and her coauthors analyzed the changes in lakeice thickness and ice cover with satellite images and climate model simulations(satellite images are only available from 1991)The climate models suggest the Arctic lakes froze almost six days later and broke up about 18 days earlier in the winter of 2011 pared with the winter of 1950.“The changes in ice and the shortened winter affect Northern munities that depend on ice roads to transport goods，”Surdu said.For example, every winter, oil panies build roads over frozen lakes to carry supplies to Prudhoe Bay.“The dramatic changes in lake ice may also contribute to further warming of the entire region, because open water on lakes contributes to warmer air temperatures，” Surdu said.The Arctic is warming twice as fast as the rest of the planet, for reasons that may include its layered atmosphere, which traps heat, and the loss of sea ice and snow cover, which help reflect the suns energy when present.【語篇解讀】本文主要講述北極湖冰的變化及其帶來的影響。1What does the text mainly tell us?AArctic lakes now freeze earlier and melt later.BAlaskas local warming is decreasing sharply.CArctic lakes are losing ice.DArctic lakes hold more flesh water than before.【解析】主旨大意題。根據(jù)第一段第一句話，特別注意find，show，suggest等詞后的賓語從句?！敬鸢浮緾2What can we infer the North Slope is dotted with?Athick forests.Bnumerous lakes.Cgreen grasslands.Dfertilized farmlands.【解析】推理判斷題。根據(jù)第二段第二句話可知：The scientists surveyed 402 lakes on the North Slope，where permafrost (permanently frozen ground)and shallow lakes dominate the area.【答案】B3According to the text，the great changes of Alaskas Arctic lakes _.Aare totally beyond Surdus expectationsBare pletely within Surdus expectationsCe as no surprise to Surdu and her coauthorsDe as a great excitement to Surdu【解析】細節(jié)理解題。根據(jù)第三段首句中的shocked可判斷答案選A?！敬鸢浮緼4How many days was the winter ice season of Arctic lakes in 2011 shorter than that in 1950?A6 days.B12 days.C18 days.D24 days.【解析】細節(jié)理解題。根據(jù)第四段第一句話：The climate models suggest the Arctic lakes froze almost six days later and broke up about 18 days earlier in the winter of 2011 pared with the winter of 1950.晚結(jié)冰六天，早融化18天，那么北極湖泊的結(jié)冰季節(jié)2011年比1950年一共就少了24天，故選D?！敬鸢浮緿.完形填空Life was hard, and Cam was broke as he had lost his job as a DJ.He had no cash on him but a brandnew dollar bill with all the autographs (親筆簽名) of the Opry stars, which he _1_carefully and carried with him always.One morning, he saw a young man _2_quietly in an old yellow Dodge in the parking lot.Cam waved to him and drove away.When he went back to the parking lot that night, he noticed the car again, parked in the_3_space.This car had not moved.The next morning, as Cam walked near the car, the man _4_his window down, _5_ himself and said he had been in his car for days with no money or food.Then, very_6_， the man asked if he might borrow a dollar for a snack to get him by until the next day.Cam explained his_7_that he didnt have a dollar to lend him.He walked to his car, wishing he could have _8_him.Then Cam suddenly _9_his Grand Ole Opry dollar.He _10_with his conscience a minute or two, pulled his wallet out and _11_the bill.Then he walked back to the man and gave him his _12_dollar.“Somebody has _13_all over this，” the man said, but he didnt notice that the writing was dozens of _14_.He took the bill.That very morning when Cam was back home trying not to _15_what he had done, things began to happen.The phone rang; a recording studio wanted him to do a mercial that paid $500, which _16_like a million.In the next few days more _17_came to him out of nowhere.Good things kept ing _18_.Cam _19_saw the man in the old yellow Dodge again.But whether the guy was a _20_or an angel doesnt matter.【語篇解讀】這是一篇記敘文，文中作者講述了自己因為善行得到好報的故事。1A.possessedBguardedCworriedDheld【解析】聯(lián)系前文“with all the autographs (親筆簽名) of the Opry stars”，可知此處指的是他認真地保護這張鈔票。guard保護。故選B?！敬鸢浮緽2A.beggingBcryingCsittingDsinging【解析】聯(lián)系下文“he had been in his car for days”可知此處指的是他看見一個年輕人靜靜地坐在車里面。sit坐。故選C?！敬鸢浮緾3A.sameBrightCproperDwrong【解析】根據(jù)后一句可知這輛車還停在原來的地方。same相同的。故選A?！敬鸢浮緼4A.turnedBpushedCrolledDopened【解析】結(jié)合常識可知汽車的車窗需要搖下來。roll滾動，轉(zhuǎn)動。故選C。【答案】C5A.introducedBexplainedCpraisedDtold【解析】根據(jù)前文描述可知Cam和這個年輕人并不認識，因此需要先介紹自己。introduce介紹。故選A?！敬鸢浮緼6A.warmlyBmerrilyCrudelyDhesitantly【解析】根據(jù)下文“borrow a dollar for a snack to get him”可知這個年輕人是在向他乞討，因此會非常猶豫地說。hesitantly猶豫地。故選D。【答案】D7A.jobBsituationCcarDhobby【解析】根據(jù)下文“he didnt have a dollar to lend him”他沒有一美元可以借給他，可知Cam解釋了他的情況。故選B?！敬鸢浮緽8A.savedBforgottenChelpedDmissed【解析】根據(jù)前一句描述可知Cam希望自己能幫到這個年輕人。help幫助。故選C?！敬鸢浮緾9A.discoveredBrememberedCfoundDsaw【解析】根據(jù)后半句可知此處指的是他突然想起了自己的“Grand Ole Opry”美元，remember想起。故選B?！敬鸢浮緽10A.thoughtBconsideredCsearchedDstruggled【解析】根據(jù)下文“his conscience”他的良心，可知他思想斗爭了一兩分鐘。struggle with與斗爭。故選D?！敬鸢浮緿11A.touchedBdroppedCsmelledDstudied【解析】根據(jù)第一段中的句子“which he _ carefully and carried with him always”可知他非常珍惜這張鈔票，故此處指的是他認真地看了看這張鈔票。study研究，學習，仔細觀察。故選D?！敬鸢浮緿12A.bigBonlyCsmallDnice【解析】結(jié)合語境可知此處指的是他唯一的一張美元。only唯一的。故選B?！敬鸢浮緽13A.writtenBdrawnCpaintedDdamaged【解析】根據(jù)下文“the writing”可知此處指的是有人在這張鈔票上寫滿了字。written寫，write的過去分詞。故選A。【答案】A14A.linesBsignaturesCwordsDpictures【解析】根據(jù)前文“with all the autographs (親筆簽名) of the Opry stars”可知這張鈔票上有很多簽名。signature簽名。故選B?！敬鸢浮緽15A.lie inBstick toCthink aboutDrely on【解析】根據(jù)上一段描述可知他送出了自己唯一的一美元，因此會感到些許遺憾。故此處指的是他盡量不去想這件事。think about考慮。故選C?！敬鸢浮緾16A.soundedBlookedCseemedDbecame【解析】根據(jù)前半句描述可知此處指的是聽起來像，sound聽起來。故選A。【答案】A17A.newsBphonesCopportunitiesDmessages【解析】根據(jù)前一句描述可知在接下來的幾天中不知從哪兒來的好機會不斷的來到他面前。opportunity機會。故選C。【答案】C18A.finallyBsteadilyCquicklyDslowly【解析】keep doing sth.持續(xù)做某事，據(jù)此可知好事情不斷地到來。steadily穩(wěn)定地，有規(guī)律地。故選B?！敬鸢浮緽19A.neverBjustCyetDstill【解析】句意：Cam再也沒有見過這個坐在黃色舊道奇汽車里面的男人。never永遠沒有，故選A。【答案】A20A.driverBpainterChelperDbeggar【解析】聯(lián)系前文“the man asked if he might borrow a dollar for a snack to get him”可知此處指的是這個年輕人是一個乞丐或者天使不重要。beggar乞討者。故選D。【答案】D