高三英语一轮复习-话题14航天科技.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,1.harmful:adj.,有害；可致损伤,吸烟有害健康。,Smoking is harmful to our,health.,The drug is harmful to our brain.,h,arm:,h,armless:,harmlessness,n.,损害/伤害,a,dj.,无害,n.,无害,1,第1页,harm,常见短语：,do sb.harm/do harm to sb.,do more harm than good,There is no harm in(sb.s)doing sthIt does no harm(for sb.)to do sth.,对某人有害。,弊大于利,做 没有坏处,2,第2页,2.by laying eggs.,lay-laid-laid-laying,放,把,放在,；产卵,He laid his books on the desk.,注意,:,lie(lay;lain;lying),躺；位于,lie(lied;lied;lying),说谎,The naughty boy _ to me that the hen that,_ there just now had _ two eggs the day,before.,A.laid;laid;laid B.laid;lay;lain,C.lied;laid;lain D.lied;lay;laid,D,3,第3页,3.,puzzle,:,n.,谜,难题,vt&vi(,使,),迷惑,(,使,),为难,puzzled,:,adj.,无法了解,(,感到,),迷惑,puzzling,:,adj.,令人费解,sth puzzles sb.,某事使某人迷惑,/,为难,sb be puzzled by sth.,某人对,感到迷惑,puzzle about/over sth.,苦苦思索,solve a puzzle,处理一个难题,What puzzles me is why he left the country without telling anyone.,Im puzzled by his failure to reply my letter.,4,第4页,4.,now that:,既然，因为,既然每个人都到了，我们就能够开始会议。,_,we can begin the meeting.,因为你是一个大男孩,你就必须行为表现得更加好.,_,you must behave better.,Now that everybody is here,Now that you are a big boy,now that,同,since,相同,语气较弱,强调人们已知事实。,Now that you are here,why not have supper with us?,you ought to have a good rest,now that youve finished the job.,5,第5页,5,.,They were,in time,to produce carbon,nitrogen,迟早，最,终 相当于,sooner or later,You will succeed in time,if you keep on,working hard.,Dont worry Im sure things will get better in,time.,2),i,n time(for sth./to do sth.)及时，不迟,I was just in time for the flight.,You must go off now if you want to attend the,meeting in time.,6,第6页,与,time,相关短语,:,ahead of time,提前,in no time,立刻,马上,at,times,有时,at,a time,每次,;,一次,at no time,绝不；永不,at one time,曾经；一度,once,upon,a time,从前,on,time,按时,;,按时,from,time,to,time,不时地,take ones time,不着急,7,第7页,6.,It,was not immediately,obvious,that,water was to be fundamental to the development of life,.,水会对于生命发展起关键作用,这一点在当初并不太显著.,本句表达是,名词性从句在句中作主语作用,It,是形式主语,真正主语是,that water was to be fundamental to the development of life.,如:,It,is no wonder,that he has passed the exam,.,8,第8页,7.,(sth)depend on(sth else):,1),取决于,Our success depends on whether everyone works hard or not.,2),依赖，依靠,Children depend on their parents for all of their material needs.,相信，信赖,You can depend on Jane;she always keeps her promises.,4,）,depend on/upon,宾语补足语能够是不定式或分词,The old man depended on his daughter to keep house.,He doesnt work,but depends on his parents giving him money.,我们成败取决于是否每个人都努力工作。,9,第9页,8.But when I tried to step forward,I found I was carried,twice as far as,on the earth and fell over.,1,）,A+,倍数,+as+adj/adv,原级,+as+B,表示,A,恰好是,B,多少倍,2)A+,倍数,+adj/adv,比较级,+than+B,表示“,A,比,B,大（长，宽，高,),几倍”,3,）,A+,倍数,+the size/weight/height/length/width+of+B,表示,A,恰好是,B,多少倍,10,第10页,1)“A+be+,倍数,+as+,形容词原级,+as+B”.,This tree is,three times as tall as,that one.,His father is,twice as old as,he.,2)“A+be+,倍数,+,形容词比较级,+than+B”,长江差不多比珠江长两倍。,我们学校学生数量比他们学校多三倍。,The Yangtze River is almost,twice longer than,the Pearl River.,The number of students in our school is,three,times larger than,that in theirs.,11,第11页,3)“A+be+,倍数,+the+,名词,(size,length,width)+of+B”,The newly broadened square is,four times the,size of,the previous one.,新扩建广场是以前四倍大。,Do you regret _(pay)100 dollars for,the painting?,No,I would gladly have paid _,(,两倍那么多了,)for it.,paying,twice as much,12,第12页,这条街是那条街四倍长,This street is,three,times longer,than,that one.,This street is,four,times,as long as,that one.,This street is,four times the length of,that one.,我们教室大小是你们教室三倍,Our classroom is,twice bigger/larger than,yours.,Our classroom is,three times as big/large as,yours.,Our classroom is,three times the size of,yours.,13,第13页,