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2017届高考英语(人教版)一轮教师文档讲义:必修3 unit 4
[话题素材——天体科普] 好词 1.invention n. 发明 2.explore vt. 探险;考察 3.spacewalk n. 太空行走 4.launch vt. 发射 5.advanced adj. 高级的;先进的;领先的 6.a space travel 太空之旅 7.come into existence 开始产生;成立 8.manned spaceship 载人宇宙飞船 9.in_time 及时;终于 10.solar activity 太阳活动 11.be_proud_of 对……感到自豪 12.watch_out 密切注视;当心;提防 13.come true 实现 14.in the field of science 在科学领域 15.improve the quality of life for humans 提高人类的生活质量 佳句 1.It_is_science_and_technology_that make our life more convenient. 是科学技术使我们的生活更加方便。 2.Ever since space research began, it_has_been_criticised_as a huge waste of money and other resources, which_might_be_used_to_help_to_relieve_the_suffering of the earth's starving millions. 自太空探索开始以来,一直被批评为浪费金钱和其他资源,而这些(金钱和资源)本可以被用来帮助缓解地球上上百万挨饿的人的痛苦。 3.The development of science and technology makes_it_possible_for_China_to_realize the dream of going into outer space. 科学技术的发展使得中国实现进入外太空的梦想变得可能。 [精美语篇] Do We Need Space Exploration Man has been fascinated by outer space for thousands of years. It has been over forty years since man's first landing on the moon. Now, some people believe that space exploration is a waste of time and money. They point out the fact that it cost billions of dollars to carry on the space research, but a little information was brought back. However, every coin has two sides. There are still a majority of other people who believe that space exploration has more advantages. And I agree with those people. Many new products, such as weather and communication satellites, are also products of space programs, and they have benefited people all over the world. And what's more, scientific knowledge about outer space has been acquired by mankind. We believe that it will bring more benefits in the future, which we cannot even imagine now. Space exploration is a challenge to human beings. That's why several nations try hard to carry out space exploration continuously. 高频单词 1.system (n.) 系统;体系;制度 2.theory (n.) 学说;理论→theoretical (adj.) 理论上的 3.atmosphere (n.) 大气层;气氛 4.thus (adv.) 因此;于是 5.harmful (adj.) 有害的→harm (n.) 害处(vt.) 对……有害 6.puzzle (vt.&vi.)(使)迷惑; (使)为难 (n.) 谜;难题→puzzled (adj.)迷惑不解的 7.pull (n.&vt.) 拉(力);拖;牵引力 8.float (vi.&vt.) (使)浮动;(使)漂浮 (n.) 漂浮物 9.violent (adj.) 猛烈的→violence (n.) 暴力→violently (adv.) 猛烈地 10.globe (n.) 球体;地球仪→global (adj.) 全球性的;全世界的 11.presence (n.)出席;到场;存在→present (adj.) 出席的;到场的 (vt.) 呈递 12.reaction (n.) 反应;回应→react (vi.) 反应;回应 13.unlike (prep.) 不同;不像→like (反义词) (prep.&v.) 像;喜欢→dislike (v.&n.) 不喜欢 14.exist (vi.) 存在;生存→existence (n.) 存在 15.gentle (adj.) 温和的;文雅的→gently (adv.) 温和地;文雅地;温柔地 重点短语 1.in_time 及时;终于 2.in_one's_turn 轮到某人;接着 3.prevent..._from 阻止;制止 4.cheer_up 感到高兴;感到振奋 5.break_out 突发;爆发 6.watch_out_for 密切注意;当心;提防 7.lay_eggs 下蛋 8.give_birth_to 产生;分娩 9.now_that 既然 10.block_out 挡住(光线) 11.as_well_as 和;以及 12.get_the_hang_of 熟悉;掌握;理解 热点句型 1.whether...or not 是否…… The earth became so violent that it was not clear whether the shape would last or_not (是否). (教材P25) 2.make it+adj./n. for sb./sth. to do sth. This produced a chain reaction, which made_it_possible_for_life_to_develop (使生命发展成为可能). (教材P26) 3.now that 引导的原因状语从句 Walking does need a bit of practice now_that_ (既然) gravity has changed. (教材P31) 4.as...as 比较结构 ..., but it will not be as_strong a pull as (像……一样强) the earth's. (教材P31) 5.“倍数+as+adj./adv.+as”句型 But when I tried to step forward, I found I was carried twice_as_far_as_on_the_earth_ (是地球上的两倍远) and fell over. (教材P31) 教材复现 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。 1.________ is even more important is that ________ the earth cooled down, water began to appear on its surface. 答案:What; as 第一空考查主语从句,从句中缺少主语,故填what; 第二空考查状语从句,结合语意可知此处表示“伴随”。 2.According to a widely ________ (accept) theory, the universe began with a “Big Bang” ________ threw matter in all directions. 答案:accepted; that/which 第一空考查非谓语动词作定语修饰theory,且accept与theory之间为被动关系,故填accepted;第二空考查定语从句,从句中缺少主语且指物,故填that/which。 3.It was not immediately obvious ________ water was to be fundamental ________ the development of life. 答案:that; to 第一空考查主语从句,it为形式主语,that引导的从句是真正的主语;第二空考查固定短语,be fundamental to 意为“是……的基础”。 4.As a result ________ this, many scientists believe the earth may become too hot ________ (live) on. 答案:of; to live 第一空考查固定短语;第二空考查“too...to...”结构。 5.________ life will continue on the earth for millions of years to come will depend on whether this problem can be solved. 答案:Whether 考查主语从句。从句中不缺主语和宾语,结合语意可知答案是whether。 6.________ many scientists believe is that the continued presence of water allowed the earth to dissolve ________ (harm) gases and acids into the oceans and seas. 答案:What; harmful 第一空考查主语从句,从句中缺少宾语;第二空考查词形转换,修饰名词,故填形容词harmful。 7.They are putting too much carbon dioxide ________ the atmosphere, ________ prevents heat from escaping from the earth into space. 答案:into; which 第一空考查介词,结合语意可知填into;第二空考查非限制性定语从句,从句中缺少主语且指物,故填which。 8.Leaving the moon's gravity ________ (be) not as painful as leaving the earth's. 答案:was/is 考查主谓一致。动名词作主语时谓语动词用单数。 9.Last month, I was lucky enough ________ (have) a chance ________ (make) a trip into space with my friend. 答案:to have; to make 第一空考查固定句式“be enough to do sth.”;第二空考查chance后跟不定式作定语。 10.I might even grow ________ (tall) if I stay here long enough. 答案:taller 考查形容词的用法。结合语意可知此处表示“长得更高”,故用比较级。 1 harmful adj.有害的 What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. (P26) 很多科学家们相信,由于地球上长期有水存在,使地球得以把有害的气体和酸性物质溶解到海洋里。 (1)be harmful to对……有害 (2)harm n.&vt.伤害;损害 do harm to sb. /do sb. harm对某人有害 There is no harm in_doing sth.做某事没有害处 (3)harmless adj.无害的 harmlessness n.无害 ①[2015·浙江高考]It is implied that light pollution does_harm_to the eyesight of animals. 这暗示了光污染对动物的眼睛有害。 ②[2014·江苏高考]In contemporary culture, physical expressions of anger are generally considered too_socially_harmful_to_be_tolerated. 在当代的文化中,愤怒的肢体表达被普遍认为对社会有太多伤害而不能被容忍。 ③[2013·安徽高考]These days, breaking traffic rules and littering are not uncommon, causing_serious_harm_to life and the environment. 这些天,违反交通规则和乱扔垃圾的现象很常见,这对生活和环境造成了严重的伤害。 2 exist vi.存在;生存 They laid eggs too and existed on the earth for more than 140 million years.(P26) 它们也下蛋,在地球上生存了一亿四千多万年。 (1)exist on靠……为生 exist by靠……方式为生 exist in存在于……之中 There exist...某地有……;存在 (2)come into existence产生;成立;开始存在 in existence存在 (3)existing adj.现存的;目前的 ①[2015·重庆高考]Works of this type, he believed, spoke to deep and unvarying features of human nature and could continue_to_exist over centuries. 这种类型的作品,他相信,说出了人类本性深奥而永恒的特征,并且可能持续存在几个世纪。 ②As is known to us, China came_into_existence as an independent country in 1949. 众所周知,在1949年中国以一个独立的国家存在了。 ③There_existed_a_close_relationship between families and their milkmen. 各家各户和他们的送奶工之间存在着一种亲密的关系。 ④[必背佳句]There_exists_a_good_way to solve the_existing_problem in geography. 有一个解决现存地理问题的好办法。 ⑤介词填空 a.Even though he is a little boy, strange ideas always exist ________ his mind. b.The old lady became seriously ill last week, and she has only existed ________ milk ever since. c.The Imperial Palace in Beijing has been ________ existence for more than 500 years. 答案:a.in b.on c.in -名师点睛- exist是不及物动词,没有被动语态,也不用于进行时态。 3 puzzle n.谜;难题 vt.& vi.(使)迷惑; (使)为难 How life began on earth is one of the biggest puzzles that scientists found hard to solve.(P27) 地球上的生命是怎样开始的,这是科学家们发现难以解决的谜之一。 (1)be in a puzzle 感到困惑;不知如何是好 puzzle about/over 冥思苦想;苦苦思索 (2)puzzling adj. 令人迷惑的 puzzled adj. 感到迷惑的 be puzzled about 对……迷惑不解 ①[2014·四川高考]People have long puzzled_over how the Egyptians moved such huge rocks. 人们长期对埃及人如何搬动如此巨大的石头而感到困惑不解。 ②[2014·福建高考]Tenyson's care for the elderly woman puzzled the flower seller. Tenyson对这位老妇人的关心使卖花者很迷惑。 ③[必背佳句]What_puzzled_the_doctors_most was that they could not find the cause of the disease. 使医生最困惑的是他们找不到致病的原因。 ④[必背佳句]The puzzled look on her face suggested she was puzzling over the puzzling maths problem. 她脸上困惑的表情暗示了她正在思考令人困惑的数学问题。 -名师点睛- puzzled意为“迷惑的,不解的”,往往用于指人或人的表情、脸色、声音等;puzzling意为“令人迷惑的,让人不解的”,往往指物。 4 pull n.& vt.拉(力);拖;牵引力 As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth's gravity.(P30) 随着火箭的升空,由于我们在努力挣脱地球的引力,我们被向后推在座位上。 pull away (车辆等)驶离;开走 pull in (车辆等)进站;靠停 pull down 拆除;(把身体)拖垮 pull off (匆忙地)脱下(衣物);(成功地)完成 pull on (匆忙地)穿上 pull out 拔出;驶出;摆脱(困难) pull through 恢复健康;渡过难关 pull up 停车 pull together (使)齐心协力 ①[2015·四川高考]Dad pulled_out a pressure cooker and filled it up with cabbages, eggplants, potatoes, corns, onions and carrots. 父亲取出一个高压锅,并且把白菜、茄子、土豆、玉米、洋葱和胡萝卜都放入到里面。 ②[2015·天津高考]I sat down on the floor and pulled a few books off the shelf at random. 我坐在地板上,并随手从书架上取出了几本书。 ③They are_pulling_down some houses to make room for a new hotel. 他们正在拆除一些房子,目的是为了给新旅馆腾地。 ④The train pulled_in and all the passengers got off. 火车进站了,所有的乘客都下了车。 ⑤[必背佳句]So long as we pull_together there's no mountain top we can't conquer. 只要我们齐心协力,就没有攀登不上的高峰。 图解助记 过关演练 单句语法填空 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 1.What makes me ________ (puzzle) is why he left the country without telling anyone. 答案:puzzled 考查形容词作宾补。此处表示“迷惑的,困惑的”,故填puzzled。 2.Formaldehyde (甲醛) is used in the building materials, which is as ________ (harm) a chemical to our health as melamine. 答案:harmful 考查词形转换。根据“as+adj.+a(n)+n.”及句意可知,空处应填形容词harmful“有害的”。 3.________ existed a certain doubt among the workers as to the necessity of the work. 答案:There 考查exist的用法。根据“There exists+名词”结构可知答案。 4.The students couldn't agree with one another, so there was a ________ (violence) discussion over the plan. 答案:violent 考查词形转换。根据句子结构可知,此空格处填形容词作定语修饰discussion。 5.________ (like) what you supposed, only few people attended his birthday party, which was disappointing. 答案:Unlike 考查词形转换。结合语意可知,“并不像”你所猜测的那样,故填Unlike。 6.Mary earned little money a month, so she had to exist only ________ fast noodles. 答案:on 考查固定短语“exist on”意为“靠……生存”。 7.He found something ________ (float) on the lake, which frightened him. 答案:floating 考查“find+宾语+宾补”的用法。结合语意可知,something和float之间为主动关系且表示“正漂浮着”,故填floating。 8.There is a ________ (puzzle) expression on his face because of the ________ (puzzle) problem. 答案:puzzled; puzzling 考查puzzle的两个形容词的区别:puzzled表示“迷惑的,困惑的”,puzzling表示“令人迷惑的”。 9.“Can you do me a favor now, please?” Tom said ________ (gentle). 答案:gently 考查词形转换。此处修饰said这一动词,故应用副词(注意拼写规则)。 10.I was lucky enough to get on the train before it pulled ________. 答案:out 考查固定短语,pull out表示“驶出车站”。 1 in time 及时;终于;最终 They were in time to produce carbon dioxide, nitrogen, water vapour and other gases, ... (P25) 它们最终产生了二氧化碳、氮气、水蒸气和其他多种气体,…… ①[2015·四川高考]Investing in_time for parenting and raising relationships is money well spent. 及时把钱投在对子女的教育和培养人际关系上是非常值得的。 ②[2015·湖北高考]Space travel can be so delightful but at_the_same_time invisibly dangerous. 太空旅行是让人高兴,但与此同时也存在看不见的危险。 ③[2015·北京高考]At_one_time,_daydreaming was thought to be a cause of some mental illnesses. 曾经,人们认为做白日梦是某些精神疾病的原因。 ④[必背佳句]At_no_time did they actually break the rules of the game. It was unfair to punish them. 他们实际上从未违反比赛规则,惩罚他们是不公平的。 -名师点睛- at no time等含否定意义的词组位于句首,句子要部分倒装;in no time意为“立刻,马上”,无否定意义,置于句首,不引起倒装。 2 in one's turn 轮到某人;接着 Thus they have, in their turn, become the most important animals on the planet.(P26) 于是,他们接着成为了这个行星上最重要的动物。 in turn 依次;轮流;逐个;相应地;转而 by turns 轮流;依次 take turns doing/to do sth. 轮流做…… It's one's turn to_do sth. 轮到某人干某事 It turns/turned out that... 结果…… ①All theories are from practice and in_turn serve practice. 所有的理论都来源于实践,并反过来为实践服务。 ②When it_is_in_my_turn,_I am too excited to speak. 当轮到我时,我激动地说不出话来。 ③It_turned_out_that this young man was none other than the old man's son. 结果这位年青人竟然正是这个老人的儿子。 3 cheer up (使)高兴;(使)振奋;感到高兴;感到振奋 I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.(P31) 我立刻高兴起来,由于失重我在太空舱里飘来飘去,我望着(身后的)地球越来越小,而(前方的)月亮越来越大。 (1)cheer sb. up使某人感到高兴/振奋 cheer sb. on为……鼓气;向……喝彩 (2)cheering adj.能鼓舞人的;使人振作/高兴的 cheerful adj.快乐的;高兴的;兴高采烈的 cheerless adj.阴冷的;阴暗的;阴郁的;不快乐的 cheers(用于祝酒)干杯;再见 ①[2013·湖南高考改编]Upon arriving at the classroom, the author was_cheered_up by a warm welcome. 一进入教室,作者被一阵热烈的欢迎振奋了精神。 ②When I'm feeling sad my mother tells me funny stories to_cheer_me_up. 当我感到忧伤时,我的母亲就给我讲有趣的故事让我高兴起来。 ③We did our best to cheer_him_on when he was about to give up. 当他将要放弃时我们尽力鼓励他。 过关演练 选词填空 break out; now that; block out; cheer up; take turns to do; give birth to; get the hang of; watch out for; prevent...from...; in time 1.[2015·湖南高考]________ Chicago's waste water was draining efficiently into the Chicago River, the city's next step was to clean the polluted river. 答案:Now that 2.Do remember ________ cars while crossing the street. 答案:to watch out for 3.Over the years she had tried her best ________ the terrible memory, but it was not an easy task. 答案:to block out 4.The officer demanded that such things ________ happening again. 答案:(should) be prevented from 5.Mrs Green had a heart attack. But luckily, the doctor came ________ to save her life. 答案:in time 6.Only by practicing time and time again can you ________ the grammar rules. 答案:get the hang of 7.We usually ________ do some cleaning, and today it is my turn to do it. 答案:take turns to 8.A heavy fire ________ in the department store last night and luckily everyone escaped from it. 答案:broke out 9.Jenny was ill. So I sent her some flowers to ________. 答案:cheer her up 10.It was the study of history that ________ the social sciences. 答案:gave birth to 1 This produced a chain reaction, which made_it_possible for life to_develop.(P26) 这就产生了一个连锁反应,使生命的发展成为可能。 (1)这是“make it+形容词/名词+to do sth.” 句型。该句型中it为形式宾语,指代后面的不定式结构,形容词或名词为宾语补足语。 it作形式宾语时常用在find/make/think/consider+it+adj./n.+to do结构中。 (2)it作形式宾语,除指代不定式结构外,还可指代that引导的宾语从句。 语境助记 ①[2015·福建高考]When it comes to emotional support, the scientist thinks_it_necessary_to_surround_yourself with supportive people. 当提到情感支持时,科学家认为周围是一些支持你的人是必要的。 ②[2014·福建高考]It was the culture, rather than the language, that made_it_hard_for_him_to_adapt_to the new environment abroad. 是文化而不是语言使他很难适应国外的新环境。 ③The fact that she was foreign made_it_difficult_for_her_to_get a job in that country. 她是一个外国人的事实使得她在那个国家很难找到一份工作。 2 But when I tried to step forward, I found I was carried twice_as_far_as on the earth and fell over.(P31) 而当我试着向前迈步时,我发觉我被送出很远,步子的跨度竟是在地球上的两倍,因而我摔倒了。 twice as far as...是一种倍数的表示方法,意为“是……的两倍远”。as far as...“远到……”。 英语里常见的倍数表达法有: A+动词+倍数+as+adj./adv.原级+as B A+动词+倍数+adj. /adv.比较级+than B A+动词+倍数+the+名词(size/weight/length...)+of B A+动词+倍数+what从句,表示“A是……的多少倍”。 语境助记 ①[2015·江苏高考]The electronic waste stream is increasing three_times_faster_than traditional garbage as a whole. 整体上来说,电子废弃物的增长速度是传统垃圾的三倍。 ②[2013·安徽高考改编]It's said that the power plant is now twice_as_large_as what it was. →It's said that the power plant is now twice_the_size_of what it was. 据说该发电厂现在是过去的两倍大。 过关演练 Ⅰ.单句语法填空 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 1.After four hours' climbing, the three men finally reached the top of Mount Tai, ________ (exhaust). 答案:exhausted 考查形容词作状语,对主语的特征或属性进行说明。 2.My uncle's house in the downtown area is much smaller than ours, but it is twice ________ expensive. 答案:as 考查倍数表达法。根据句式分析可以看出,此处省略了“as ours”。 3.He is ________ clever that he worked out the problem in ________ a short time. 答案:so; such 考查“so+adj./adv.+that”句式和“such+a(n)+adj.+n.”结构。 4.The school makes ________ a rule for students to be forbidden to bring mobile phones into classroom. 答案:it 考查it的用法。其中it为形式宾语,不定式作真正的宾语。 5.________ matters most in learning English is enough practice. 答案:What 考查主语从句。从句中没有主语,故应填what。 Ⅱ.完成句子 1.His hard work ________________ for him to succeed in such a long time. 他的努力工作使他在如此漫长的时间里成功成为可能。 答案:made it possible 2.Global warming is heating the planet ________________ previously feared. 全球变暖的速度是人们以前担心的两倍。 答案:twice as quickly as 3.________________ they are able to arrive at an agreement through communication ________. 他们是否能通过交流达成协议还不太清楚。 答案:It is no clear whether; or not 主语从句 主语从句 在句中起主语作用的从句称为主语从句(Subject Clause)。引导主语从句的连接词主要有三类:连接词that, whether等;连接代词what, who, whose, whatever, whichever, whoever等;连接副词when, where, why, how等。 That she could come to help us made us very happy. 她能来帮我们使我们很高兴。 Where the English evening will be held hasn't been decided. 英语晚会将在哪里举行,还没有决定。 Whatever you do in your spare time should do no harm to others. 无论你在业余时间做什么都不应伤害他人。 主语从句能用it作形式上的主语 由于主语从句太长,为了避免头重脚轻,常常用it作形式主语,而把主语从句放在句末。比较常见的句型有:It+be+形容词(important, likely, possible, clear等)+主语从句;It+be+名词(fact/idea/mystery/pity/pleasure/wonder等)+主语从句;It+be+过去分词(known/said/reported/suggested等)+主语从句;It+不及物动词(appear/seem/happen等)+主语从句。 It is obvious to the students that they should get well prepared for their future. 很显然,学生们应该为自己的未来做好准备。 It is suggested that the old man (should) go to the countryside to have a rest. 建议这位老人到乡村去休息一下。 It surprised him that they came to visit him suddenly. 让他吃惊的是他们突然来看他。 过关演练 单句语法填空 在空白处填入适当的内容(1个单词) 1.[2015·北京高考]________we understand things has a lot to do with what we feel. 答案:How 考查主语从句。从句中不缺主语和宾语,因此结合语意填连接副词,“我们理解事物的方式与我们的认知有很大关系”,故填how。 2.[2015·重庆高考]It is strongly recommended ________ I set more practical and specific goals. 答案:that 考查主语从句。it为形式主语,that引导的从句为真正的主语。 3.I think ________ impresses me about his painting is the colors he uses. 答案:what 考查主语从句。从句中缺少主语,因此填连接代词,且指事物,故填what。 4.________ the boy didn't take medicine made his mother angry. 答案:That 考查主语从句。从句中既不缺成份也不缺语意,故填that。 5.________ has helped to save the drowning girl is worthy of being praised. 答案:Whoever 考查主语从句。从句中缺少主语指人,结合语意可知此处表示“无论谁”。查看更多