英语必修4备课课件：Unit2WorkingthelandLanguage(人教版)

1、section learning about language & using language .重点单词一、将下列单词与所对应的英文解释连线1discoveryato draw a line under a word，sentence，etc.2reduce bto make sth.less，smaller，cheaper，etc.3underline can opinion that you express about sb.or sth.4comment dan act of finding sb./sth.5nutrition ethe process by which l

2、iving things receive the food necessary for them to grow and be healthy答案：1.d2.b3.a4.c5.e二、根据所给词性和汉语意义写出英语单词1 vt.使迷惑；使为难 adj.困惑的，烦恼的 adj.令人困惑的 n困惑；混乱2 vt.遗憾；惋惜n.遗憾；懊悔 adj.遗憾的，后悔的 adv.遗憾地；痛惜地3 adj.化学的；关于化学的 n化学confuseconfusedconfusingconfusionregretregretfulregretfullychemicalchemistry4 n生产；制造 vt.生产；

3、制造5 n矿物；矿石 n矿，矿山6 n发现；发觉 vt.发现；看出7 vt.减少；缩减 n减少；缩小8 n总结；摘要；概要 vt.概括；总结productionproducemineralminediscoverydiscoverreducereductionsummarysummarize.重点短语根据汉语意思补全短语1 sale待售2 need of需要3cause damage 给造成损害4wash 将洗掉，洗净5build 逐渐增强；建立；开发forintooffup6lead 导致；造成(后果)7 addition另外8turn 转向，向求助9focus 集中(注意力、精力等)于10

4、keep.free 使免受(影响、伤害等)；使不含(有害物)tointoonfrom/ofconfuse vt.使迷惑；使为难(p13)they asked so many questions that they confused me.他们问了许多问题，都把我弄糊涂了。you confused australia with austria.你把澳大利亚和奥地利搞混了。many people are confused about the new ways of measuring temperature.许多人都搞不清测定温度的新方法。mr wang asked so many difficu

5、lt questions that i was confused.王先生问了如此多难题，以至于我感到很迷惑。i was confused about the confusing murder.我对这个令人困惑的凶杀案感到困惑。their questions were confusing.他们的问题令人困惑。there was some confusion as to whether we had won or lost.不清楚我们究竟是赢了还是输了。归纳拓展(1)confuse a with / and b把a与b混淆be confused about对感到困惑be confused by被搞

6、糊涂了be confused that.对困惑(2)confused adj.困惑的，烦恼的confusing adj.令人困惑的confusion n混乱；困惑形象助记the confused look on her face suggested she was confused about the confusing instructions.她困惑的表情表明她对那些令人迷惑的说明感到困惑。即境活用1用confuse的适当形式填空this is a_problem which many scientists dont know how to solve.what he said made

7、me totally_.there seems to be some_about who actually won.答案：confusingconfusedconfusion regret(p13)(1)vt.遗憾；惋惜i didnt regret the choice i had made.我作了这个选择并不后悔。i regretted missing the good film.我后悔没能看那部好电影。i regret to say that i cannot help you.很抱歉，我不能帮你的忙。i regret to tell you that you have failed ag

8、ain in the examination.很抱歉，这次考试你又没考及格。 (2)n.遗憾；懊悔归纳拓展to ones regret令某人感到遗憾的是with regret遗憾地he told me with regret that he could not come to the party.他很抱歉地对我说他不能来参加这个聚会了。much to my regret，i must leave now.非常抱歉，我现在必须走了。即境活用2完成句子i _ _ _(后悔告诉了你)the fact that i crashed the car.i _ _ _ _(很遗憾告诉你)that you d

9、idnt pass the driving test.答案：regret telling youregret to tell youbuild up(p14)(1)增多，加强，加大these exercises are good for building up leg strength.这些锻炼有助于增强腿部的力量。their words built up my confidence.他们的话增强了我的信心。my stress built up as time went on.随着时间的推移，我的压力越来越大。(2)建立，开发shes built up a very successful bu

10、siness.她创办的生意红红火火。we built up this business after ten years struggle.经过10年拼搏后我们建立了这家公司。(3)增强的体质；使更加强壮you need lots of fresh fruit to build you up.你得多吃新鲜水果以增强体质。即境活用3完成句子我从10岁起就通过观看成千上万部英语影碟来增强我的英语水平。ive_ _ _ _by watching thousands of english dvds since i was 10.这将帮助科学家建立一个新的生物分支。this will help scien

11、tists_ _a new branch of biology.答案：built up my englishbuild up lead to(p14)(1)导致，造成(后果)what on earth led to so many mine disasters?到底是什么导致了这么多矿难？eating too much sugar leads to much weight.吃太多的糖会导致增肥。several factors led us to choose famous universities for our study.几个因素促使我们选择名牌大学学习。归纳拓展lead sb.to so

12、me place带领某人到某地lead sb.in doing sth.率领某人干某事lead ones /the way带路，领路(2)通向，通往the path leads to that small village.这条小路通向那个小村子。all roads lead to rome.(谚)条条大路通罗马。即境活用4完成句子过量的工作和过少的休息会引发疾病。too much work and too little rest often_ _ illness.你是如何得出这个结论的？what_ _ _this conclusion?是什么让你开始从事演艺事业的？what_ _ _ _ _

13、acting as a career?答案：leads toled you toled you to take up focus on(p14)(1)集中(注意力、精力等)于；关注all eyes were focused on the speaker.大家的目光都集中在发言人身上。you must try to focus your mind on your study.你必须努力把心思用在学习上。归纳拓展focus ones attention /mind on /upon集中注意力/心思于concentrate on sth.集中(注意力、精力等)于pay attention to注意p

14、ut ones heart into sth.全神贯注于某事(2)(使)调节焦距let your eyes focus on objects that are further away from you.睁大眼睛看清楚离你较远的物体。the television cameras are focused on the crowd.电视摄像机的镜头聚焦于人群。归纳拓展focus nu，c焦点；中心点the focus of attention关注的焦点bring into focus使集中在焦点上，使清楚起来it was the main focus of attention at the mee

15、ting.这是会议上关注的主要焦点。即境活用5完成句子when studying，he_ _ _ _(集中注意力于)his lessons.bring the object_ _(在焦点上)if you want a good photo.答案：focused his attention oninto focus reduce vt.减少；减缩(p14)it was foggy so the driver had to reduce speed to forty kilometres an hour.由于大雾，司机不得不把速度减到每小时40千米。if you buy more than ten

16、，they will reduce the price by 10 percent.你如果买10个以上他们就会把价格降低百分之十。the number of the cars was reduced from 40 to 30.汽车数量由40辆减少到30辆。the number of the cars was reduced by 10%.汽车数量减少了10%。the population has increased by 15 percent.人口增长了15%。 即境活用6用适当的介词填空production costs have been reduced_30%. t h e p o p

17、u l a t i o n h a s i n c r e a s e d f r o m 1 . 2 million_1.8 million in this city this year.答案：byto keep.free from /of使免受(影响或伤害等)；使不含(有害物)(p14)parents should keep their children free from harm.家长不应该让孩子受到伤害。lydia has been completely free from cancer since 1995.自从1995年以来莉迪娅就已经完全地治愈了癌症。they like liv

18、ing in a village，free from/of crowds and noises.他们喜欢住在村子里，远离人群和喧闹。she got the ticket free of charge.她免费得到了这张票。these exercises help free the body of tension.这些锻炼可以使紧张的身体放松。归纳拓展be free from / of无的be free to do sth.自由地做free sb./sth.of /from sth.使某人/ 某物摆脱/ 除去即境活用7完成句子使这个地方除了学习资料外没有任何东西。_this space_ _eve

19、rything but study materials.用了很长时间才把遇险者从倒塌的建筑物中解救出来。it took hours to_the victims_the collapsed building.答案：keep；free offree；from comment(p15)(1)n.评论；议论she was asked about the pay increase but made no comment.询问她加薪问题但是她不进行评论。he made no comment on our proposal.他对我们的建议没有作评论。will you resign，minister?部长，

20、你要辞职吗？no comment!无可奉告！归纳拓展make comments on /upon /about sth.评论某事without comment不必多说no comment无可奉告(2)vt.& vi.表达意见；作出评论he commented that she was not fit for the job.他评论说她不称职。can you comment on the conclusion?你能对这一结论发表意见吗？归纳拓展comment on.对发表评论comment that.评论说即境活用8完成句子您对这起事故发生的原因有何评论？have you any _ _

21、 _ _ the cause of the accident?发言人拒绝对这件事发表评论。the spokesman refused to _ _ the matter.她评论说这是一部很精彩的电影。she_ _it was an excellent film.答案：comment to make aboutcomment oncommented thatexperience will make him a man.经验会使他成为一个堂堂的男子汉。the smell of cooking makes me hungry.烧菜的味道令我感到肚子饿。she made her children wash their hands before eating.她要孩子们在吃东西前洗手。when i first came to new york，i had a lot of trouble making myself understood.我刚到纽约时，想让人听懂我的话非常困难。 即境活用9完成句子the noise in the school_ _ _(让人