1、Unit4 Extended reading,Project,Assessment&Further study 知识点讲练重点词汇重点词汇1.definition n.定义;释义,解释【教材原句教材原句】The basic definition of VR lies in the name itself,which means“reality that is not real”.我们从虚拟现实的名字就能看出它的基本定义,意思就是“非真实的现实”。【归纳拓展归纳拓展】by definition按照释义definition of.的定义define v.定义;使明确;规定define.as.解释为
2、definite adj.一定的;确切的definitely adv.清楚地,当然;明确地,肯定地 单句填空For people who are interested in sound,the field of sound technology is (definition)making noise.Devices were grouped by generationdesktop computers,basic mobile phones,and box-set TVs(definition)1992.In ancient times,people defined a happy life
3、a life with food and shelter.Almost definition,waste is something that most people prefer not to think too much about.definitelydefinedasby2.engage vt.&vi.吸引住(注意力、兴趣);雇用,聘用;与建立密切关系【教材原句教材原句】By delivering the content in a meaningful way,this new approach to learning manages to engage students interes
4、t and enhance learning efficiency.通过用一种富有意义的方式来呈现内容,这种新的学习方法能够吸引学生兴趣,提高学习效率。【归纳拓展归纳拓展】engage in参加;从事engage sb in sth使某人参加/从事某事engage sb as.聘请某人为engage sb to do sth雇用某人做某事engaged adj.忙的;已订婚的be engaged on/in从事于;忙于be engaged to sb与某人订婚engagement n.约会;约定;订婚;雇用engagement to sb与某人订婚engaging adj.动人的;迷人的;有趣
5、的engagingly adv.动人地;吸引人地 单句填空There wasnt a dry eye in the house when they announced their(engage).Wed be able to engage local people volunteers.I have engaged a secretary(deal)with all my paperwork.The soldiers were(engage)in a military operation close to the Ugandan border.engagementasto dealengage
6、d3.boil down to归结为【教材原句教材原句】It really boils down to three thingstime,cost and technical limitations.其实说到底就三个方面时间、费用和技术局限。【归纳拓展归纳拓展】boil down煮浓;归结boil sth down(to sth)概括;归纳;压缩boil over煮沸;溢出;爆发boil up沸腾;进入危急关头,令人担忧boil sth up把某物烧开come to a boil烧沸/开始沸腾 单句填空I could feel anger boiling inside me.Even so,t
7、here are good reasons to think that public disappointment will not boil.When you boil it,only two types of companies exist in Silicon Valley.upoverdown4.optimistic adj.乐观的,抱乐观看法的【教材原句教材原句】Considering there are so many challenges to deal with,are you still optimistic about the future of VR?考虑到有这么多的挑战
8、需要应对,你还对虚拟现实的未来持乐观态度吗?【归纳拓展归纳拓展】be optimistic that/about.对抱乐观的态度optimistically adv.乐观主义地optimism n.乐观;乐观主义optimist n.乐观主义者(反)pessimistic adj.悲观的;悲观主义的 单句填空Be optimistic final goals and stick to them.We need not feel ashamed of our failure.We may,instead,face it realistically and accept it(optimistic
9、).Turning ones life into a waiting game requires faith and hope,and is strictly for the(optimistic)among us.(optimistic)made him alive through the hard days.aboutoptimisticallyoptimistsOptimism5.annoy vt.使恼怒,使生气;打扰,骚扰【教材原句教材原句】Does it annoy you to see cars blocking the road like weeds when you are t
10、ravelling?当你旅行时,看到大量的汽车挡住了路,你会感到心烦吗?【归纳拓展归纳拓展】it annoys sb(to do sth)(做某事)使某人生气annoyed adj.愤怒的,生气的be annoyed with sb对某人生气be annoyed at/for/about sth对某事恼火be annoyed to do sth因做某事而恼火annoying adj.讨厌的;恼人的annoyance n.烦恼;讨厌之事;打扰to sbs annoyance让某人烦恼的是 单句填空(annoy)by the level of distraction(干扰)in his open
11、office,he said,“Thats why I have a membership at the coworking space across the streetso I can focus.”Who hasnt received an email so(annoy)that it ruined an entire day?Dont openly express(annoy)at a professor or class.His mother was annoyed him for his being so rude to their neighbors.Annoyedannoyin
12、gannoyancewith our annoyance,the air conditioner broke down on the hottest night of the year!句式升级She didnt fall asleep until midnight because she had a sleeping problem.(用annoying改写)She stayed awake till midnight because of .Toher annoying sleeping problem6.expense n.费用;开销,开支【教材原句教材原句】All this techn
13、ology does not come at the expense of fashion.所有这些技术都不会以牺牲时尚为代价。【归纳拓展归纳拓展】at the expense of在牺牲(或损害)的情况下at ones expense捉弄某人;由某人付费spare no expense不惜费用;不惜代价go to the expense of doing sth花大钱做某事expensive adj.昂贵的;花钱的expensively adv.昂贵地;乱花钱地 单句填空If it should break down within the first year,we would repair
14、 it our expense.Some college students were accused of sparing no expense in(enjoy)luxury.At present,these technologies are still(expense),though.They are worth having but not at the expense better services.atenjoyingexpensiveof重点句式重点句式what if.【教材原句教材原句】What if I told you that doctors could create a
15、virtual“twin”in order to practise a delicate surgery before attempting it on the patient?如果我告诉你,医生可以先造出一个虚拟的“孪生病人”练习精密的手术,然后再在病人身上进行实际操作呢?【归纳拓展归纳拓展】what if后面跟一个完整的句子,且句子通常用一般现在时,意为“如果/要是会怎么样/该怎么办?”,相当于What should we do/will happen if.?。Guess what!你猜怎么着!So what?那又怎么样?How come?怎么会呢?Why not(do.)?为什么不(做
16、)呢?What for?为什么?为何目的?How/What about.?怎么样?Whats up?出了什么事?单句填空I grew anxious:what the family had simply left the cat behind?Im preparing my fishing tools.What?Im going to fish with some of my friends.Hi,Jane.You look upset.Whats?Well,Im trying to figure out where all my money has gone.Michael was late for Mr.Smiths chemistry class this e?As far as I know,he never came late for class.ifforupHow
