课时跟踪练（三) Word power, Grammar and usage & Task一、打牢语言基础，基稳才能楼高.单项填空1Because of their continuous failures, my enthusiasm for the football team gradually _.Afaded awayBran outCgave up Ddied out解析：选A句意：因为那个足球队不断失败，我对他们的热情也逐渐消失了。fade away“逐渐消失”；run out“用完”；give up“放弃”；die out“灭绝”。2My demand is that the information _ in my report _ to Mr. Brown without delay.Areferred; to be emailedBreferring to; emailedCreferred to; be emailedDreferring to; being emailed解析：选C句意：我的要求是在我的报告中所提到的信息应该毫无拖延地用电邮发送给布朗先生。第一个设空处作information的后置定语，且表被动，故可排除B、D两项；第二空为从句的谓语，省略了should。故选C项。3What courses are you going to do next semester?I dont know. But its about time _ on something.AId decide BI decidedCI will decide DIm deciding解析：选BIts (about) time (that) .是固定句型，从句谓语动词用一般过去时或“should动词原形”，should不可省略。因此选B。4The government promised to _ the nuclear plants within twenty years.Aclose down Bclose inCclose off Dclose to解析：选A句意：政府许诺20年内关闭核电站。close down“关闭，停业”；close in“(夜幕)降临”；close off“隔离”；close to“几乎，接近”。根据语境可知A项正确。5Although we had told them not to keep us _， they made no attempt to speed up deliveries.Ato wait BwaitingCwaited Dwait解析：选B句意：虽然我们已经告诉他们不要让我们等，但是他们没有试图加快发货速度。在“keep宾语宾语补足语”结构中，宾语us与动词wait之间为主动关系，故用现在分词。6The _ engineer had planned to design the blueprint the way no one else had ever done, but failed.Amain BchiefCmajor Dtotal解析：选B句意：这位总工程师想以别人不曾用过的方式设计这幅蓝图，但失败了。chief“首席的”，chief engineer指“总工程师，主管工程师”。main“主要的”；major“主要的，较多的”；total“全体的，总的”。7A group of Chinese writers posted a letter on the website to accuse Baidu, Chinas largest search engine, _ copyright violations.Aover BofCagainst Dabout解析：选B句意：一群中国作家在网上发了帖子指责百度，中国最大的搜索引擎，有侵犯版权行为。accuse sb. of sth.“因为某事而指责某人”。8Ralph W. Emerson would always _ new ideas that occurred to him.Aset off Bset aboutCset up Dset down解析：选D句意：Ralph WEmerson总是把他想到的新观点写下来。A：出发，动身；使爆炸；B：着手做，开始做；C：建立，拾起；D：写下，记下。根据句意，此处是“写下，记下”的意思，故选D项。9With some technical problems to be solved, it will be a while before _ cars are put into actual use.Aelectric BelectricalCelectronic Delectricity解析：选A句意：因仍有一些技术问题尚未解决，电动汽车的真正使用还要过一段时间。electric“电的，电动的”，符合语境。electrical“与电有关的”；electronic“电子的”；electricity“电”。10As is well known, the brain performs a very important _， which controls the nerve system of the body.Amotion BactionCfunction Dfact解析：选C句意：众所周知，大脑执行着非常重要的功能，它控制着身体的神经系统。function“功能”，符合句意。motion“动作”；action“行为”；fact“事实”。.选词填空1Last_but_not_least,_best wishes to all my friends.2A driver should concentrate_on the road when driving.3The argument between the two men ended_in a fight.4A fund will be_set_up for the dead mens families.5A working party has been set up to look_into the problem.6Please wait a while.Ill just go and get_changed.二、勤练语篇阅读，多练自能生巧AMany people mistakenly think Canada stopped hunting baby seals decades ago. But as many seals are killed today as during the 1950s and 1960s when overhunting significantly pushed seals down the road to extinction.Each spring, on the east coast of Canada female harp seals gather by the hundreds of thousands on newly formed sea ice to give birth to their pups. The newborn pups will be transformed into fat, soft “white coats” in about a week, thanks to the highfat content of their mothers milk.After about 12 days, the mother leaves her fully fed pup to join adult males for the annual mating ritual. The baby seals remain on the ice, crying for their mothers at first, then becoming extremely quiet and still. During this time the pups survive on the thick layer of fat they have got during nursing. A few days later, their white coats are lost to take on the smooth, blackspotted, silvery fur, which they will soon be beaten or shot to death for.The scene is extremely attractive and impressive a world built entirely of blue, grey and white. The only sounds are the wind, the ice cracking and rising, and the soft mews of the pups.Yet just days later, this pure wonderland is transformed into a factory for the mass killing of baby seals as sealers attack them in boats, helicopters and snowmobiles, armed with clubs and guns.Over the past three years, the government has allowed over 300,000 seals to be killed each year. But many more have died without being accounted for, leaving more than a million seals killed, all in the name of profit.语篇解读：在加拿大东海岸，每年都有上百万只小海豹惨遭屠戮，只因为它们长了一身如丝般光滑的皮毛。1From the passage, we can know that when spring comes, _.Aadult seals start to change skinBhundreds of thousands of baby seals are born into the worldCbaby seals swim southward with their mothersDpeople stop hunting seals for a while解析：选B细节理解题。根据第二段第一句“Each spring, on the east coast .give birth to their pups.”可知，每年春天，有成千上万的格陵兰小海豹降生。2After mother seals leave, _.Afather se