外研版（2019）选择性必修 第三册Unit 2 A life’s work Using language课件(共25张PPT)

(共25张PPT)
Unit 2　A life's work
Using language
基础落实 必备知识全过关
[重点单词]
必记写作词汇
　　　 n. 试验
识记阅读词汇
1. craftsmanship n. 　　　　　　　　　
2. atomic adj. 　　　　　　　　　
3. hydrogen n. 　　　　
4. propulsion n. 　　　　　　　　
5. acclaim n. 　　　　　　　　　
6. shun v. 　　　　　　　　　
7. spotlight n. 　　　　 　　　　　
8. harsh adj. 　　　　　　 　　　
trial
手艺;工艺;技艺　
原子能的;核能的
氢
(车辆等的)推进力　
表扬,赞赏　
(故意)避开,躲开
聚光灯;媒体的关注　
恶劣的,艰苦的,严峻的
串记拓展词汇
prosperous adj. 富裕的,繁荣的,兴旺的,发达的→　　　　　　 n. 繁荣
prosperity
[重点短语]
1. 　　　　　　　　　反复试验(以得出最佳结果)
2. 　　　　　　　　　 退让,认输
3. 　　　　　　　　　 不拘一格地思考,跳出框框思考
4. 　　　　　　　　　 开辟新的领域
5. 　　　　　　　　　 一直以来
by trial and error　
back down　
hink outside the box　
break new ground　
of all time
重点词汇
1. contribute to 有助于;促成;捐献
This contributed greatly to the development of Peking Opera. (教材原句)
这极大地促进了京剧的发展。
【归纳拓展】
(1)contribute v. 做贡献,奉献;是……的原因;撰稿
contribute. . . to. . . 为……捐献……
(2)contribution n. 贡献;捐助
make contributions/a contribution to. . . 为……做出贡献
【背佳句】Knowing the history of the Tang Dynasty will contribute to your understanding the poems. 了解唐朝的历史有助于你理解这些诗。
重难探究 能力素养全提升
练出神 单句填空/一词多义
①I am convinced that your participation will certainly contribute to our
　　　　　(win) the championship in the match.
②Loneliness is a serious social problem that can contribute to depression and even crimes. 　　　　
③If you want to contribute to our newspaper,please send me your article before the deadline. 　　　　
写精彩 完成句子·背诵
④屠呦呦在医学领域做出了巨大的贡献。
Tu Youyou 　　　 　　　　 　　　　　　　　　　.
winning　
导致
投稿
has made great contributions in the field of medicine
2. devote oneself to. . . 专心于或致力于……
Deng devoted himself whole-heartedly to the development of the “two bombs”. (教材原句)
邓稼先全心全意地致力于“两弹”的研制。
【归纳拓展】
(1)devote sth. to. . . 把……献给/用在……
be devoted to (doing) sth. 致力于(做)某事,献身于(做)某事
(2)devotion n. 奉献,忠诚
devotion to献身于
【背佳句】She devoted herself full-time to her business.
她全身心地投入到她的事业中。
练出神 单句填空
①Once married,Jo devoted her whole life 　　　　　looking after her children and being a full-time homemaker.
②Only when we realize the importance of helping each other can we be devoted to 　　　　　(build) a harmonious society.
③From my first job at the restaurant,I learned teamwork and
　　　　　　　(devote).
to　
building　
devotion　
写精彩 句式升级·背诵
④The young lady is devoted to teaching the deaf children and has little time to care for her own daughter.
→　　　　　　　　 　　　　　　　　　　　　,the young lady has little time to care for her own daughter. (用现在分词作状语改写)
→　　　　　　　　　　　　　　　　　　　　　,the young lady has little time to care for her own daughter. (用过去分词作状语改写)
【联想】表示“专心于;致力于”的短语还有:
be devoted to;be lost in;be engaged in;be absorbed in;focus/concentrate on
Devoting herself to teaching the deaf children
Devoted to teaching the deaf children
语法冲关 语言规则全理清
表语从句
情景导入
I read a report last night. The content was that①a lot of people died in a traffic accident. What astonished me most is that②some babies lost their lives. That’s what③I want to remind. However, the problem is whether ④the government has taken some measures to deal with it and how ⑤we can help them. My suggestion is that ⑥we should obey the traffic rules. That’s because⑦ we should be responsible for ourselves, as well as others.
【语法感悟】
①②⑥为从属连词that引导的表语从句。that在从句中　　　　　　　　　　,没有任何意义,只起连接作用。
③为连接代词what引导的表语从句,what在从句中作　　　　　。
④为从属连词whether引导的表语从句,whether在从句中不充当句子成分,意为“　　　　　”。
⑤为连接副词how引导的表语从句,其在从句中作状语。
⑦为because引导的表语从句,意为“　　　　　”。
不充当句子成分
宾语
是否
因为
语法精讲
一、表语从句的含义
在句中充当表语的从句称为表语从句。这种从句往往是对主句主语的进一步解释说明。
二、表语从句的连接词
从属连词:that,whether;
连接代词:what,whatever,who,whom,whoever,whose,which,whichever;
连接副词:where,when,how,why。
三、表语从句的用法
1. 从属连词that和whether引导的表语从句
(1)that引导的表语从句
that引导表语从句时仅起连接作用,无任何意义,在从句中不作任何成分,通常不可省略。
The trouble is that I have lost his address. 问题是我把他的地址弄丢了。
(2)whether引导的表语从句
whether引导表语从句时起连接作用,意为“是否”,在从句中不作任何成分。
What he wants to know is whether we can finish our work by tomorrow morning.
他想知道的是我们能否在明天早上之前完成工作。
【名师点睛】
if不能引导表语从句。
2. 连接代词引导的表语从句
连接代词who,whom,whose,what,which,whoever,whatever,whichever在表语从句中充当主语、宾语或定语。
The problem is who we can get to replace her.
问题是我们能找谁来代替她。
All that you should let me know is whose turn it is to take charge of the project next.
你应该让我知道的是,下一个轮到谁负责这个项目。
3. 连接副词引导的表语从句
连接副词 when,where,how,why 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。
The question is how he did it.
问题是他是如何做到的。
Their difficulty is where they can raise enough money.
他们的困难在于哪里可以筹集到足够的资金。
4. as if/as though等引导的表语从句
as if,as though引导的表语从句可用陈述语气,也可用虚拟语气。此类表语从句常跟在特定的动词后面,如seem,appear,look,taste,sound,feel等。
Now it seems as though she had known Millie for years.
现在好像她认识米莉已有好多年了似的。
【名师点睛】
如as if/as though引导的表语从句用虚拟语气,遵循以下原则:
(1)从句表示与现在事实相反,谓语动词用一般过去时。
(2)从句表示与过去事实相反,谓语动词用“had+过去分词”。
(3)从句表示与将来事实相反,谓语动词用“would/could/might+动词原形”。
5. because引导的表语从句
because说明主语所表示的事件发生的原因,意为“因为”。
It’s just because he doesn’t know her.
这仅仅是因为他不认识她。
四、表语从句注意事项
1. that与what的区别
that引导表语从句时,是连词,在从句中不作成分;what是连接代词,引导表语从句时,在从句中作主语、宾语、表语或定语。
That was what she did this morning on her way to school. (作did的宾语)
那就是她今天早晨在去学校的路上做过的事。
2. because与why的区别
that’s because. . . 意为“那是因为……”,强调原因;that’s why. . . 意为“那是……的原因”,强调结果。
I didn’t phone her,and that’s why she got angry with me. (强调“生气”这一结果)
我没有给她打电话,那就是她对我生气的原因。
I didn’t phone her,and that’s because I got angry with her. (强调“生气”这一原因)
我没有给她打电话,那是因为我生她的气了。
【名师点睛】
名词reason作主语时,后面的表语从句表示原因时要用that引导,而不用because。
the reason why. . . is that. . . 为固定句型,意为“……的原因是……”,why引导的定语从句,修饰先行词reason,其中why也可以用for which替换;that引导表语从句。
The reason why/for which his parents were disappointed was that he failed in the exam.
他父母失望的原因是他没有通过考试。
3. 表语从句中的虚拟语气
在表语从句中,表示间接的命令、要求、请求、建议、决定等,主句中的主语通常是:advice,suggestion,proposal,request,order,idea等,从句谓语形式是“should+动词原形”(should可以省略)。
His suggestion is that we (should) adjust our plan to new conditions.
他的建议是我们应该根据新的情况调整我们的计划。
Her request is that the doctor (should) be sent for at once.
她要求立即派人请医生来。
Ⅰ. 单词拼写
1. 　　　　　(恶劣的)climates or conditions are very difficult for people, animals, and plants to live in.
2. The 　　　　　(试验) period was over, and we could settle down to developing the new style of intelligent robots.
3. The division between the 　　　　　　(繁荣的) west and the impoverished east remains.
4. 　　　　　　(氢) and oxygen combine to form water.
Harsh　
trial　
prosperous　
Hydrogen
学以致用 随堂检测全达标
5. Interest in jet 　　　　　　(推动力) was now growing at the Air Ministry.
6. The whole house is a monument to her 　　　　_　　(手艺).
7. They were monitoring the upper air to collect evidence of ______(原子能的) explosions.
8. Yuan Longping is 　　　　　　(赞赏)as Father of Hybrid Rice.
propulsion　
craftsmanship　
atomic　
acclaimed
Ⅱ. 用适当的连接词填空
1. This is 　　　　　my father has taught me—to always face difficulties and hope for the best.
2. From space,the earth looks blue. This is 　　　　　about seventy percent of its surface is covered by water.
3. The question is 　　　　　we can rely on him.
4. A ship in harbor is safe,but that’s not 　　　　　ships are built for.
5. The employers often give the job to 　　　　　they believe has work experience with a strong sense of duty.
6. But that’s not our final decision,which is 　　　　　I’m writing to you.
what　
because　
whether　
what　
whoever
why
Ⅲ. 根据汉语意思补全句子
1. 看起来他好像喝醉了。
　　　　　　　he were drunk.
2. 问题是谁对这起事故负有责任。
The question is 　　　　　　　　　　　　　　　　　　　　.
3. 我相信通过努力我会成功的。
My belief is 　　　　　　　　　　　　　　by working hard.
4. 我的问题是他是否离开了。
My question is 　　　　　　　　　　　　　　　.
It looks as if　
who is to blame for the accident
that I will succeed　
whether he left or not　
5. 我的建议是我们明天一早就出发。
My suggestion is 　　　　　　　　　　　　　　　　　　　　.
6. 事实就是我们队已经赢得了比赛。
The fact is 　　　　　　　　　　　　　　　　　　　　　　　.
7. 她不喜欢我的原因是我让她紧张。
　　　 　　　　　she doesn’t like me is that 　　　　　　　　　　　.
that we should start early tomorrow　
that our team has won the game　
The reason why
I make her nervous
Thanks