【词，句重难点课件】Unit 4 Period Ⅱ 高中英语 外研版（2019）必修三

(共28张PPT)
Unit 4
Amazing art
Period Ⅱ
Using language
01
词汇斩
句子控
模块
导航
02
03
语法汇
定向练1
翻译句子。
1．At the exhibition, the company’s sales manager demonstrated the new toys.　
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【解析】
1．在展览会上，公司的销售经理展示了新玩具。
词汇斩
2．The candidates must demonstrate good communication skills.
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【解析】
2．候选人必须表现出良好的沟通技能。
词汇斩
3．You have to demonstrate that you are reliable.
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【解析】
3．你必须证明自己是可信赖的。
词汇斩
定向练2
在空白处填入1个适当的单词或括号内单词的正确形式。
1．He was late for the morning class today, ________ is often the case.
2．The cost may be lower than we first thought, but ________ any case it will still be quite big.
【解析】
1．as　2．in
词汇斩
3．In case ________ fire, ring the bell.
4．This is a case ________ great caution is needed.
5．The porter will carry your ________ (case) upstairs. Never bother about them.
【解析】
3．of　4．where　5．cases
词汇斩
6．—He didn’t want to talk to Sally.
—________ that case why did he agree to meet her
7．You probably won’t need to call—but take my number, just ________ case.
8．In many ________ (case), people do not want others to know they have a problem.
【解析】
6．In　句意为：——他不想和萨莉说话。——既然那样，为什么他还同意和她见面？in that case意为“既然那样”。
7．in　句意为：你很可能不需要打电话，不过以防万一还是记下我的电话号码吧。in case意为“以防万一”。
8．cases　句意为：在很多情况下，人们不希望别人知道他们有困难。
词汇斩
定向练3
在空白处填入1个适当的单词或括号内单词的正确形式。
1．If I’m not ________ (mistake), that’s the same purse that I lost yesterday.
2．It was the first time that the doctor had admitted making ________ mistake concerning the patient.
【解析】
1．mistaken　句意为：如果我没弄错的话，这就是我昨天丢的那个钱包。be mistaken意为“搞错；弄错”，故填mistaken。
2．a　make a mistake意为“犯错”，故填不定冠词a。
词汇斩
3．Someone must have taken my reference book ________ mistake.
4．I often mistake her ________ her mother on the phone.
【解析】
3．by　句意为：一定是有人误拿了我的参考书。by mistake意为“错误地”。
4．for　句意为：电话里，我常把她误认为是她母亲。表示“把……错当成……”用介词for。
词汇斩
定向练4
一、在空白处填入1个适当的单词或括号内单词的正确形式。
1．Though ________ (lack) experience, he managed to do a wonderful job on teaching in the key university.
2．For lack ________ money, the project had to be stopped.
3．A number of areas have been seriously hit by the typhoon. Now people in the disaster areas are lacking ________ food and fresh water.
【解析】
一、1．lacking　设空处和句子的主语he之间是逻辑上的主动关系，故用现在分词形式。句意为：尽管缺乏经验，但他设法在一所重点大学教书还教得不错。
2．of　for lack of意为“由于缺乏”。句意为：由于缺乏资金，这个工程被迫终止了。
3．in　be lacking in意为“缺乏”。
词汇斩
二、根据汉语意思完成句子。
1．尽管缺乏设施，他们还是继续进行实验。
They carried on with their experiment in spite of ________ ________ ________ facilities.
2．研究者称还没有得出结论，因为缺少证据。
The researchers said the conclusion had not been drawn ________ ________ ________ ________.　
【解析】
二、1．a lack of
2．for lack of evidence
词汇斩
句子控
定向练1
在空白处填入1个适当的单词。
1．________ caused the accident is still a complete mystery.
2．________ has caused great confusion is how he made it without anyone else’s help.
【解析】
1．What　设空处引导主语从句，从句中缺少主语，此处表示“造成事故的原因”，应用What引导该从句。
2．What　设空处引导主语从句，此处表示“让人极为困惑的事情”，用What引导主语从句，What作从句的主语。
句子控
3．________ we used to see as something impossible is now becoming a reality.
4．________ makes this shop different is that it offers more personal services.
【解析】
3．What　设空处引导主语从句，从句中谓语动词see缺少宾语，此处表示“我们过去认为不可能的事情”，故填What。
4．What　设空处引导主语从句，从句中缺少主语，此处表示“这家商店与众不同的地方”，故填What。
句子控
定向练2
一、在空白处填入1个适当的单词。
1．________ we were waiting for you, I taught my wife how to swim.
2．Failure usually results from laziness ________ diligence can bring success.
【解析】
一、1．While/When/As　句意为：在我们等你的时候，我教我妻子如何游泳。
2．while　此处表示前后对比关系，意为“而”，故填while。
句子控
3．________ I understand what you say, I can’t agree with you.
4．________ the Internet is bridging the distance between people, it may also be breaking some families or will cause other family problems.
【解析】
3．While/Although/Though　
4．While/Although/Though
句子控
二、翻译句子。
1．[课标全国Ⅲ2020·改编]She lives on the ground floor, while he lives upstairs with his wife and their two daughters.　
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【解析】
二、1．她住在一楼，而他和妻子及两个女儿住在楼上。
句子控
2．[天津2020年7月·改编]I never worried about my son while I was away because my mother kept an eye on him.　
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【解析】
2．我不在时从不担心我的儿子，因为我母亲在照看他。
定向练
一、在空白处填入括号内单词的正确形式。
1．Rainforests ________ (cut) at such a speed that they will disappear from the earth in the near future.
2．A new cinema ________ (build) here. They hope to finish it next month.
【解析】
一、1．are being cut　句意为：热带雨林被砍伐的速度如此之快，在不久的将来它们会从地球上消失。根据句意可知，热带雨林正在被砍伐，故用现在进行时的被动语态。
2．is being built　句意为：一家新的电影院正在这里建造，他们希望下个月能完工。由They hope to finish it next month.可知，建造工作正在进行，且主语cinema与动词build之间是被动关系，因此使用现在进行时的被动语态，故填is being built。
语法汇
3．The patient ________ (examine) now. He will come out soon.
4．—I don’t suppose the police know who did it.
—Well, surprisingly they do. A man has been arrested and ________ (question) now.
【解析】
3．is being examined　句意为：病人正在被检查，他很快就出来了。根据句意可知，设空处应用现在进行时的被动语态，故填is being examined。
4．is being questioned　句意为：——我认为警察不知道是谁做的这件事。——可是，令人惊讶的是他们知道。一名男子已经被逮捕了，现在正在被审问。结合now可知，审问工作正在进行，且主语man与动词question之间为被动关系，故填is being questioned。
语法汇
5．We can hear that pieces of paper ________ (print) quickly on the fast-moving printing machines.
【解析】
5．are printing　句意为：我们能够听到纸张在飞快转动的印刷机上快速地印刷。结合句中的We can hear可知“印刷”这一动作正在进行，paper与动词print之间为被动关系，又因为print的进行时的主动形式即可表示被动含义，从句主语为pieces of paper，从句谓语应用复数形式，故填are printing。
语法汇
二、同义句转换。
1．I don’t know what time it is now for my watch is under repair.
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【解析】
二、1．I don’t know what time it is now for my watch is being repaired.
语法汇
2．A new railway station is under construction at present.
→______________________________________________________________________
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【解析】
2．A new railway station is being built/constructed at present.
语法汇
3．How much money we should spend on the project is under discussion.　
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【解析】
3．How much money we should spend on the project is being discussed.
语法汇
三、将下列句子转换为被动语态。
1．The rain is washing away huge quantities of good earth each year.　　
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【解析】
三、1．Huge quantities of good earth are being washed away by the rain each year.
语法汇
2．We are making preparations for the interview that will be held the day after tomorrow.
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【解析】
2．Preparations for the interview are being made by us, which will be held the day after tomorrow.
语法汇
3．The mother is happy to see that the teachers are taking good care of her little daughter in the kindergarten.
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【解析】
3．The mother is happy to see that her little daughter is being taken good care of by the teachers in the kindergarten.
语法汇