2020-2021学年新教材高中英语Unit1SCIENCEANDSCIENTISTSSectionBLearningAboutLanguage课件人教版必修2.pptx(课件中不含音视频素材)

1、 SectionSection B BLearningLearning AboutAbout LanguageLanguage.知识体系图解 重点词汇 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 病毒发现;调查结果;(法律)判决疫苗thinkingproteininitialframeworksolid重点短语 1.theoretical framework 2.make sense 3.

2、calm down 4.deal with 5.get down to doing sth 6.打开 7.依靠 8.集中于;专注于 9.执行 理论框架有意义;讲得通平静下来;镇定下来处理;涉及着手做某事turn ondepend upon/onfocus oncarry out重点句式Many scientists subscribe to the view that it is human activity that has caused global warming.重点语法表语从句.释义匹配1.solidA.of or at the beginning2.frameworkB.hard

3、or firm,keeping a clear shape3.initialC.your opinion or ideas about something4.thinkingD.a very small living thing that causes infectious disease5.virusE.a supporting structure around which something can be built答案:1.B2.E3.A4.C5.D.单句语法填空1.The energy is makes the cells able to do their work.2.What he

4、 really means is he disagrees with us.3.Your dictionary is still you put it yesterday.4.It sounds as someone is knocking at the door.5.I drove to Zhuhai last week and that was I had a few days off.what thatwhereif/thoughwhy重点词汇重点句式重点语法随堂练习This was when you should have calmed down and got down to doi

5、ng some solid work.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 down(使)平静下来;(使)镇定下来These useful tips will help you calm down before entering the room.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 mother was trying her best to calm him down.那个婴儿在哭,他妈妈想尽办法使他安静下来。重点词汇重点句式重点语法随堂练习重点词汇重点句式重点语法随堂练习【词汇精讲2】get

6、down to开始干,着手做(尤指非常花费精力之事),其中的to是介词,后接动词时要用动词-ing形式。I must get down to study tonight,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。Theres not much time left.Lets get down to repairing the machine.时间所剩不多了,让我们开始修理这台机器吧。重点词汇重点句式重点语法随堂练习【词汇拓展】get over克服get across被传达;被理解get through做完;通过(考试);接通(电话)ge

7、t along/on with进展;与某人相处We can surely get over all the difficulties that may come up.我们一定能够克服可能发生的一切困难。How can I get it across to you how important this is?我怎么做才能让你们理解这件事有多么重要呢?重点词汇重点句式重点语法随堂练习重点词汇重点句式重点语法随堂练习【词汇精讲3】solid adj.可靠的;固体的;坚实的n.固体She didnt eat solid food for several weeks.她数周以来都没有吃固体食物。Thi

8、s has provided a very solid foundation for the group to grow.这为集团发展提供了一个非常坚实的基础。The process of heating is to change something from a solid to a liquid.加热是使某物由固态转变为液态的过程。重点词汇重点句式重点语法随堂练习重点词汇重点句式重点语法随堂练习Many scientists subscribe to the view that it is human activity that has caused global warming.许多科学

9、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 to.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 who encouraged Beethoven to move to Vienna.是海顿鼓励贝多芬移居维也纳的。It was my brother who bought me the bike as a present.是我哥哥给我买的这辆自行车做礼物。重点词汇重点句式重点语法随堂练习【句式拓展】

10、(1)强调句的基本句型:It is/was+被强调部分+that/who+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?重点词汇重点句式重点语法随堂练习(3)not until的强调句型:It is/was not until.that.It is summertime that means we can fire up the grill and enjoy the great outdoors.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

11、 was not until the area was seriously polluted that they realized that it was high time to take action to stop pollution.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 from coming in time?是什么使得他没及时来?重点词汇重点句式重点语法随堂练习重点词汇重点句式重点语法随堂练习重点词汇重点句式重点语法随堂练习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

12、+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,look,appear,sound,taste,smell等。1.that无词义,在句中不作成分。The trouble is that we are short of money.困难是我们资金短缺。My idea is that he can teach children English in this school.我的想法是他能够在这所学校教孩子们英语。重点词汇重点句式重点语法随堂练习2.whether意为“是否”,在句中不作成分。The question is whether we need more i

13、ce cream.问题是我们是否还需要一些冰激凌。The key is whether we can solve the problem ourselves.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 to tell you.那就是我想告诉你的。This is what we have been looking forward to for years.这是我们多年来一直期望的。Thats what he is worrying about.那就是他在担心的事。重点词汇重点句式重点语法随堂练习4.who,which,wh

14、om,whose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 question is which of us should go.问题是我们哪一个应该去。The problem is who we can get to replace her.问题是我们能找到谁去替换她呢。5.when,where,how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。Go and get your coat.Its where you left it.去把外套拿来。就在你原来放的地方。The problem is how we can find him.

15、问题是我们如何找到他。重点词汇重点句式重点语法随堂练习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 stone walls are used instead of fences around 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 love the place too much.那是因为我太爱这个地方了。7.as if/as though意为“好像”At that time,it seemed as

16、 if I couldnt think of the right word anyhow.当时,我似乎怎么也想不出一个恰当的字眼来。It seems as if he didnt know the answer.好像他不知道答案。重点词汇重点句式重点语法随堂练习注意:1.表语从句一定要用陈述语序。My hope is that he will keep it a secret forever.我的希望是他将永远保守秘密。That is how mice ruin many stores of 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

17、的名词后的表语从句,谓语动词需用“should+动词原形”表示,should可省略。常见的词有:advice,suggestion,order,proposal,plan,idea等。My suggestion is that we(should)start early tomorrow.我的建议是我们明天一早就出发。My advice is that you(should)go to apologize to him.我的建议是你应该去向他道歉。重点词汇重点句式重点语法随堂练习完成句子1.这就是去年举行运动会的地方。This is last year.答案:where the sports meeting was held2.唯一的问题是这个过程会有多快。The only question is.答案:how fast the process will be3.我想知道的是你何时能完成任务。What I want to know is.答案:when you can finish the task