人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists课文配套ppt课件

这是一份人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists课文配套ppt课件，共25页。PPT课件主要包含了Ⅰ知识体系图解 ，重点词汇 ，thinking，protein，initial　，framework，solid，重点短语 ，理论框架，有意义讲得通等内容，欢迎下载使用。

1.cell n.　　 　　 2.virus n.　　　　 3.finding n.　　 　　 4.vaccine n.　　　　 5.　　　　　 n.思想;思维;见解 6.　　　　　 n.蛋白质 7.　　　　　 adj.最初的;开始的;第一的 8.　　　　　 n.框架;结构 9.　　　　　 adj.可靠的;固体的;坚实的　n.固体 
细胞;小房间;单间牢房
发现;调查结果;(法律)判决
1.theretical framewrk 　　　　 2.make sense 　　　 　 3.calm dwn 　 　　　 4.deal with 　　　　 5.get dwn t ding sth 　　　　 6.　　　　　打开 7.　　　 　　依靠 8.　　　　　集中于;专注于 9.　　　　　执行 
depend upn/n
Many scientists subscribe t the view that it is human activity that has caused glbal warming.
Ⅱ.释义匹配1.slid　　　A.f r at the beginning2.framewrkB.hard r firm,keeping a clear shape3.initialC.yur pinin r ideas abut smething4.thinkingD.a very small living thing that causes infectius disease5.virusE.a supprting structure arund which smething can be built答案:1.B　2.E　3.A　4.C　5.D
Ⅲ.单句语法填空1.The energy is 　　　makes the cells able t d their wrk. 2.What he really means is 　　　he disagrees with us. 3.Yur dictinary is still 　　　　　yu put it yesterday. 4.It sunds as 　　　　　smene is kncking at the dr. 5.I drve t Zhuhai last week and that was 　　　　　I had a few days ff. 
This was when yu shuld have calmed dwn and gt dwn t ding sme slid wrk.这就是你本应该冷静下来做一些扎实的工作的时候。【词汇精讲1】calm dwn(使)平静下来;(使)镇定下来These useful tips will help yu calm dwn befre entering the rm.在进入房间之前,这些有用的小技巧会帮你镇静下来。The baby was crying and the mther was trying her best t calm him dwn.那个婴儿在哭,他妈妈想尽办法使他安静下来。
【词汇精讲2】get dwn t开始干,着手做(尤指非常花费精力之事),其中的t是介词,后接动词时要用动词-ing形式。I must get dwn t study tnight,as the exams start next week.我今晚必须开始认真学习,因为下周开始考试了。There’s nt much time left.Let’s get dwn t repairing the machine.时间所剩不多了,让我们开始修理这台机器吧。
【词汇拓展】get ver克服get acrss被传达;被理解get thrugh做完;通过(考试);接通(电话)get alng/n with进展;与某人相处We can surely get ver all the difficulties that may cme up.我们一定能够克服可能发生的一切困难。Hw can I get it acrss t yu hw imprtant this is?我怎么做才能让你们理解这件事有多么重要呢?
【词汇精讲3】slid adj.可靠的;固体的;坚实的n.固体She didn’t eat slid fd fr several weeks.她数周以来都没有吃固体食物。This has prvided a very slid fundatin fr the grup t grw.这为集团发展提供了一个非常坚实的基础。The prcess f heating is t change smething frm a slid t a liquid.加热是使某物由固态转变为液态的过程。
Many scientists subscribe t the view that it is human activity that has caused glbal warming.许多科学家都认为是人类活动导致了全球变暖。【句式剖析】本句是一个复合句。Many scientists subscribe t...是主句,that引导的是同位语从句,其中it is human activity that...是强调句,强调的是从句的主语human activity。It was Haydn wh encuraged Beethven t mve t Vienna.是海顿鼓励贝多芬移居维也纳的。It was my brther wh bught me the bike as a present.是我哥哥给我买的这辆自行车做礼物。
【句式拓展】(1)强调句的基本句型:It is/was+被强调部分+that/wh+句子其余部分.(2)强调句的一般疑问句形式:Was/Is it+被强调部分+that+句子其余部分?强调句的特殊疑问句形式:疑问词(被强调部分)+is/was+it+that+句子其余部分?
(3)nt until的强调句型:It is/was nt is summertime that means we can fire up the grill and enjy the great utdrs.正是夏日意味着我们可以生起烤架享受美好的户外时光。It was nt until the area was seriusly plluted that they realized that it was high time t take actin t stp pllutin.直到这个地方被严重污染了他们才意识到该采取行动阻止污染了。What was it that prevented him frm cming in time?是什么使得他没及时来?
表语从句表语从句是在复合句中作表语的名词性从句,放在系动词之后,一般结构是“主语+系动词+表语从句”。可接表语从句的连系动词常见的有:be,feel,seem,lk,appear,sund,taste,smell等。1.that无词义,在句中不作成分。The truble is that we are shrt f mney.困难是我们资金短缺。My idea is that he can teach children English in this schl.我的想法是他能够在这所学校教孩子们英语。
2.whether意为“是否”,在句中不作成分。The questin is whether we need mre ice cream.问题是我们是否还需要一些冰激凌。The key is whether we can slve the prblem urselves.问题是我们能否自己解决这个问题。3.what在表语从句中可作主语、宾语和表语。That is what I want t tell yu.那就是我想告诉你的。This is what we have been lking frward t fr years.这是我们多年来一直期望的。That’s what he is wrrying abut.那就是他在担心的事。
4.wh,which,whm,whse除在句子中起连接作用外,还可作主语、宾语和定语,本身具有词义。The questin is which f us shuld g.问题是我们哪一个应该去。The prblem is wh we can get t replace her.问题是我们能找到谁去替换她呢。5.when,where,hw除在句子中起连接作用外,在从句中还充当时间、地点、方式或原因状语,本身具有词义。G and get yur cat.It’s where yu left it.去把外套拿来。就在你原来放的地方。The prblem is hw we can find him.问题是我们如何找到他。
6.That/This is why...那/这就是为什么……。后面跟结果。That/This is because...那/这是因为……。后面接原因。That is why stne walls are used instead f fences arund New England fields.那就是为什么在新英格兰牧场周围用石头墙而不用栅栏。That is because I lve the place t much.那是因为我太爱这个地方了。7.as if/as thugh意为“好像”At that time,it seemed as if I culdn’t think f the right wrd anyhw.当时,我似乎怎么也想不出一个恰当的字眼来。It seems as if he didn’t knw the answer.好像他不知道答案。
注意:1.表语从句一定要用陈述语序。My hpe is that he will keep it a secret frever.我的希望是他将永远保守秘密。That is hw mice ruin many stres f grain every year.那就是老鼠是怎样每年毁坏大量粮食的。2.在表示建议、劝告、命令等含义的名词后的表语从句,谓语动词需用“shuld+动词原形” 表示,shuld可省略。常见的词有:advice,suggestin,rder,prpsal,plan,idea等。My suggestin is that we (shuld) start early tmrrw.我的建议是我们明天一早就出发。My advice is that yu (shuld) g t aplgize t him.我的建议是你应该去向他道歉。
完成句子1.这就是去年举行运动会的地方。This is 　　　　　　　　　　　　　last year. 答案:where the sprts meeting was held2.唯一的问题是这个过程会有多快。The nly questin is 　　　　　　　　　　　　. 答案:hw fast the prcess will be3.我想知道的是你何时能完成任务。What I want t knw is 　　　　　　　　　　. 答案:when yu can finish the task