2019-2020学年英语高中人教版必修2学案：Unit3 Period 3知识讲练课

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1、Unit 3 ComputersPeriod 3 知识讲练课学习目标1.掌握下列重点单词和短语的用法,over time,as a result,in a way,with the help of,deal with,so. that.等,积累相应的基础知识,提高语言运用能力 ,进一步帮助学生更好地理解课文。2.在全面深入理解课文的基础上,熟练运用所学重点单词,短语和句型。3.培养学生良好的学习习惯,有效地使用词典、网络等媒体资源来解决阅读中遇到的问题。通过识别、理解、推理、概括、重构、阐述六个层面全面提升语言运用能力。Step 1:expressions:1.Over time I have

2、 been changed quite a lot.经过一段时间我已改变了许多。【观察思考】(1)Tastes in food also change over time.食物的味道时间久了也会变。(2)As time went by,I was made smaller.随着时间的推移,我被做的越来越小。(3)With time going by,they became close friends.随着时间的推移,他们成了好朋友。(1)over time (2)as time goes by (3)with time going by 【尝试运用】句型转换(1)As time went by

3、,he gradually gets used to the life there.,he gradually gets used to the life there. (2)Table manners change over time;they follow the fashion of the day.,table manners changed;they follow the fashion of the day. (3)As time went on,they learned the skill of fishing.,they learned the skill of fishing

4、. 2.As a result I totally changed my shape.因此我完全改变了我的形象。【观察思考】(1)He didnt work hard.As a result he failed his exam.由于他没用功,结果考试失败。(2)He was late as a result of the snow.由于大雪的原因,他迟到了。(1)as a result (2)as a result of 【尝试运用】完成句子(1)It rained heavily outside,and we had to stay at home. 外面雨下得很大,结果我们只好待在家里。

5、(2) the pilots strike,all flights have had to be cancelled. 由于飞行员罢工,所有的航班都被迫取消了。(3)Jenny nearly missed the flight doing too much shopping. 由于过度购物,詹妮几乎错过班机。3.In a way our programmer is like our coach.从某种程度上看,我们的程序员就像是我们的教练。【观察思考】(1)My mother always talks with me in a friendly tone.In a way,she is mor

6、e like a friend than a mother.我妈妈总是以一种朋友般的语气跟我说话。从某种程度上与其说是母亲倒更像朋友。(2)I couldnt get through the door because there was a big box in the way.由于有个大箱子挡住了路,我不能走过这个门。(3)I came across him on my way to the cinema.在我去电影院的路上偶然遇到他。(1)in a way (2)in the/sbs way (3)on ones way to. (4)in no way 【尝试运用】把下列句子翻译成汉语。

7、(1)Social life goes in the way of her studies.(2)In no way can we allow this to continue.(3)I came across an old friend on the way to work.(4)In a way Im glad that you made that mistake,for it will serve as a warning for you.4.After all,with the help of my electronic brain which never forgets anythi

8、ng,using my intelligence is what Im all about.不管怎样,在我过目不忘电子脑的帮助下 ,运用智能就是我的一切。【观察思考】(1)I am making progress with the help of my teachers.我在老师的帮助下有了很大进步。(2)The old man walks with the aid of a heavy stick.这位老人借助一根笨重的手杖走路。(3)They succeeded by means of hard work.他们依靠努力工作而获得成功。(1)with the help of (2)with

9、the aid of (3)by means of 【尝试运用】把下列句子翻译成英语。(1)现在有了电脑的帮忙,我们能降低产品的成本了。(2)在家人的帮助下,他最终回到了学校。(3)我们可以靠一副好地图旅游。(4)她在邻居的帮助下把火扑灭了。(5)我们用词语来表达思想。5.This means that it should clean the house,mop the floors,cook the dinner and deal with telephone calls.这意味着它能清理房间、拖地板、做饭和处理接收电话等事务。【观察思考】(1)Many colleges have take

10、n measures to deal with the cheating of students in exams.许多大学已采取措施应对学生考试作弊问题。(2)I have a lot of things to deal with.我有许多事情要去处理。(3)What are we going to do with the problem?我们怎样处理这个问题?(1)deal with (2)do with 特殊疑问句中,deal with 用 提问,而 do with 用 提问。 【尝试运用】完成句子(1)Firstly,let us the most important issue.首先

11、让我们来处理最紧要的问题。(2)What will you the green gas?你们用这绿色气体干什么? (3)I dont know to deal with the problem at present.目前,我不知道如何处理这个问题。 (4)Last summer he told us to deal with poisonous gas. 去年暑假他教我们怎样应对毒气。(5) did they do with the problem arising at the meeting? 他们怎样处理会议上出现的问题?Step 2 Sentence structures1.I deve

12、loped very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage.我发育缓慢,差不多到了两百多年以后 ,查尔斯巴比奇才把我制成了一台分析机。【观察思考】(1)We had walked 10 miles before we saw a village.我们走了 10 英里才看见一个村庄。(2)I didnt begin work until he had gone.直到他离开我才开始工作。before 在此句是 ,表示 not

13、.until. 【尝试运用】把下列句子翻译成汉语。(1)John waited at the bus-stop for nearly half an hour before the bus finally arrived.(2)He was told that it would be at least three more months before he could recover and return to work.(3)My uncle didnt get married until he was forty-five.(4)I didnt wake up until I heard

14、the alarm clock.2.And my memory became so large that even I couldnt believe it!我的存储容量变得如此之大,连我自己也不能相信 !【观察思考】(1)The river is so seriously polluted that we must take action at once.河流污染如此严重,我们必须马上采取行动。(2)She told us such an interesting story that we all forgot about the time.她给我们讲了如此有趣的故事,以至于我们忘记了时间。

15、(3)He went so early that he could get a good seat.他早去为的是能得到个好座位。so. that. 引导 so 后须接 such.that. 引导 such 后须接 so that 引导 也可引导 【尝试运用】完成句子。(1)She speaks English well that she can talk with foreigners now. (2)She was happy that she danced. (3)The new story is written in easy English that even beginners ca

16、n understand it. (4)He went early he got a good seat. (5)He hurried up he could catch the train. 参考答案Step 1:1.【归纳总结】(1)随着时间的推移,久而久之;(2)随着时间逝去;(3)随着时间流逝1.【尝试运用】(1)With time going by (2)As time went on/With time going on (3)Over time2.【归纳总结】(1)结果,因此,表示结果;(2)由于,表示原因2.【尝试运用】(1)as a result (2)As a result

17、 of (3)as a result of3.【归纳总结】(1)在某种程度上;(2)挡着的路,妨碍;(3)在某人去的路上;(4)决不3.【尝试运用】(1)社交生活妨碍了她的学习。(2)我们绝不允许这种事情继续发生。(3)在我去上班的路上,我遇到了一位老朋友。(4)从某种程度上我高兴你犯了那个错,因为它将对你起到警示作用。4.【归纳总结】(1)在帮助下;(2)在协助下;(3)用的方法,凭借,借助4.【尝试运用】(1)Now we can reduce the production costs with the help of the computer.(2)He could finally go

18、 back to school with the help of his family.(3)We may travel with the aid of a good map.(4)With the aid of a neighbor,she managed to put out the fire.(5)We express our thought by means of words.5.【归纳总结】(1)处理,安排,对付;(2)处理,利用;how;what【尝试运用】(1)deal with (2)do with (3)how (4)how (5)WhatStep 2 Sentence structures we are going to learn:1.【归纳总结】连词;在之前;直到才;在之前(不)1.【尝试运用】(1)约翰在车站等了几乎半小时汽车才来。(2)他被告知至少还有三个月他才能恢复并去工作。(3)我叔叔直到 45 岁才结婚。(4)直到听到闹钟的铃声我才醒来。2.【归纳总结】如此以至于;结果状语从句 ;形容词或副词如此以至于;结果状语从句 ;名词为了,结果;状语目的从句;结果状语从句2.【尝试运用】(1)so (2)so (3)such (4)so that (5)so that