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1、Unit 4Astronomy：the science of the stars.写作单词会拼写1systemn系统；体系；制度2theory n.学说；理论3crash vi.&vt.碰撞；坠落4pull n&vt.拉(力)；拖；牵引力5floatvi.&vt.(使)浮动；(使)漂浮n.漂浮物6violent adj.猛烈的；激烈的；强暴的violence n.暴力violently adv. 猛烈地7like prep.像unlike prep.不同；不像dislike vt.&n.不喜欢8harm n.害处vt.对有害harmful adj.有害的9exist vi.存在；生存exist
2、ence n.存在10puzzle vt.&vi.(使)迷惑；(使)为难n.谜；难题puzzled adj.迷惑不解的puzzling adj.令人迷惑的11gentle adj.温和的；文雅的gently adv.温柔地；温和地.阅读单词要识记12astronomy n天文学13atmosphere n.大气层；气氛14fundamental adj.基本的；基础的15chain n.链子；连锁；锁链16gravity n.万有引力；重力17satellite n.卫星；人造卫星高频短语会默写1in time及时；终于2be harmful to/do harm to对有害3in ones
3、turn轮到某人；接着4prevent.from阻止；制止5cheer up感到高兴；感到振奋6now that既然7break out突发；爆发8watch out for密切注意；当心；提防9lay eggs下蛋10give birth to产生；分娩11block out挡住(光线)教材原句会背诵句式仿写能应用1.The earth became so violent that it was not clear whether the shape would last or not.(whether.or not 是否)1.他们是否能够通过交流达成协议还不清楚。Its not clear
4、 whether they are able to arrive at an agreement through communication or not.2.This produced a chain reaction，which made it possible for life to develop.(make it adj.to do sth.)2.这个女孩懂三门外语，这使她更容易找到一份好工作。The girl knows three foreign languages，which makes it easier for her to find a good job.3.But wh
5、en I tried to step forward，I found I was carried twice as far as on the earth and fell over.(“倍数as形容词/副词原级as”倍数表达法)3.新技术被引进后，这个工厂2016年生产的机器的数量是去年的两倍。After the new technique was introduced，the factory produced twice as many machines in 2016 as last year.精讲 4个考纲单词 harmful adj.有害的高考佳句Many wastes produc
6、ed in the producing process are harmful as well.(2015年江苏高考阅读理解B)生产过程中产生的许多废料也是有害的。(1)be harmful to sb./sth.对某人/某物有害(2)对某人有害(3)做某事没有坏处Some boys are too crazy about playing games on the computer，which is very harmful to their health.有些男生对玩电脑游戏简直到了痴迷的程度，这对他们的健康非常有害。If you want to solve the problem in t
7、his way，there is no harm in calling him.如果你想以这种方式来解决问题，你不妨给他打个电话。链接写作一句多译众所周知，过量喝酒对你的健康有害。What is known to us is that drinking too much is harmful to your health(harmful)It is known to us that drinking too much does harm to your health(harm) exist vi.存在；生存高考佳句If it werent for Rachel Carson，the envir
8、onmental movement might not exist today.(2016年全国乙卷阅读理解)如果不是因为Rachel Carson，今天的环保运动就可能不存在。(1)exist/live on sth.靠某物生存exist in存在于There exist(s).有/存在(2)in existence现存的；现有的come into existence产生；存在You cant imagine what difficulty they have existing on the money hes earning.你无法想象他们靠他挣的那点钱维持生活是多么的困难。Scienti
9、sts have many theories about how the universe first came into existence(exist)关于一开始宇宙是如何产生的，科学家们有多种理论。 puzzle vt.& vi.(使)迷惑；(使)为难 n. (游戏的)猜谜；难题；谜教材原句 How life began on earth is one of the biggest puzzles that scientists found hard to solve.地球生命如何起源是科学家们觉得很难解决的最大的难题之一。(1)a puzzle一件(让人感到)困惑的事情be in a
10、puzzle感到困惑；不知如何是好(2)puzzle about/over冥思苦想；苦苦思索(3)puzzling adj.令人迷惑的puzzled adj.迷惑不解的；困惑的be puzzled about对迷惑不解What puzzles me is why he left the country without telling anyone.令我百思不解的是他为什么没有告诉任何人就离开了这个国家。Where the missing plane has gone still remains a puzzle to us.失联飞机去了哪儿对我们来说仍是个谜。The puzzled look
11、on her face suggested she was puzzled about the puzzling math problem.(puzzle)她困惑的表情暗示了她对那个令人困惑的数学问题迷惑不解。【导学号：30892074】 pull n& vt.拉(力)；拖；牵引力高考佳句On a family car trip，her Aunt Dede pulled out a copy of Harry potter，as a surprise for her niece.(2016年四川高考完形填空)在一次家庭汽车旅行中，她(Lainey)的姑妈Dede拿出一本哈利波特，作为令她侄女惊
12、奇的东西。pull down 拆毁；摧毁pull in (车辆)进站停靠；靠边停靠pull out 驶出；拉出；拔出pull through 康复；痊愈pull up (使)停住Whether the buildings in this area should be pulled down has remained controversial；people are still looking for other possible solutions.这个区域的建筑物是否需要拆毁还存在争议；人们仍旧在寻找着其他可能的解决方法。We waved as the train pulled out of
13、 the station.火车驶出车站时我们挥手告别。Everyone was very concerned whether he would pull through or not.每个人都很关心他是否能痊愈。链接写作句式升级The train has pulled in(已进站停靠)and the passengers are boarding it now.The train having pulled in，the passengers are boarding it now.(独立主格结构)诠释3个核心短语 in time及时；终于；迟早高考佳句As a proverb goes“W
14、here there is a will，there is a way.”Our efforts will pay off in time.(2014年山东高考书面表达)常言道，“有志者，事竟成”，我们的努力迟早会有所回报。(1)in no time 立刻；马上at no time 决不(位于句首时，句子须用部分倒装结构)at a time 每次；一次at one time 曾经；一度at the same time 同时from time to time 有时；偶尔(2)take ones time 别着急；慢慢来kill time 消磨时间Well have that leak fixed
15、 in no time.我们马上就把那个漏洞补上。At no time did they actually break the rules of the game.It was unfair to punish them.(2013年辽宁高考单项填空)他们确实没有违反比赛规则。惩罚他们是不公平的。At the same time，we are going to bring along about five hundred books with us for your class.(2015年天津高考书面表达)同时，我们将为你们的中文班带去大约500本图书。 in ones turn 轮到某人；接着
