人教新课标高中英语选修六Unit4 Language points教案

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1、 人教选修 6 Unit4 Global warmingLanguage pointsTeaching material NSEFC Book 6 Unit 4Teaching Aims1. To learn some new words and phrases.2. To learn some complicated sentence patterns.Teaching Important PointHow to help the students to master the usage of some useful words, expressions and sentences.Teac

2、hing Difficult PointHow to enable the students to grasp and remember the detailed information ofthe reading material.Teaching aids A projector, and a blackboardTeaching ProcedureStep 1 RevisionRetell the text.Step 2 Language points T: Now lets learn some language points of the text.Slide show1. It i

3、s a rapid increase compared to most natural changes. 1vt. 比较；对照。如： Compare your answers with those at the back of the book to see if they are right. 把你的答案同书后面的答案对照一下，看看是否正确。 My handwriting can not be compared with my fathers. 我的书法不能与我父亲的相比。 2vt. 喻为；比拟。如： Mans life is often compared do a candle.人生常被比

4、为蜡烛。 Shakespeare compared the world to a stage.莎士比亚把人世比做舞台。 comparewith表示“ 把与相比（同类相比）” compareto 表示“ 把比做（异类相比，比喻）” compared to /with 与相比, 只能作状语2.How has this come about and does it matter?come about : 发生，造成 相当于happenWhen Mother woke up, she didnt know what had come about. Ill never understand how it

5、 came about that you were late three times a week. Do you know how the air accident came about? 3. There is no doubt that.一、作不可数名词,作“疑惑 ;怀疑”肯定句中doubt 多接whether (一般不用if代替) 同位语从句。如: Theres some doubt whether hell keep his promise. 他会不会信守诺言还难说。 She had her doubts whether the new book would sell well. 她

6、怀疑新书是否会畅销。否定句中doubt 多接that同位语从句。如: There is no doubt that they will ask you for help. 毫无疑问,他们会请你帮忙的。 I have no doubt that you will succeed. 我毫不怀疑你会成功的。 二、作及物动词常用于下列句型中,作“怀疑;不能肯定;不大相信“ 解,一般不用进行时态。用于否定句或疑问句,后接 that引导的宾语从句。如 : I dont doubt that he is telling the truth. 我毫不怀疑他在讲真话。 Do you doubt that he

7、will win the match? 你怀疑他会赢这场比赛吗? 用于肯定句,一般接whether 或if引导的宾语从句.如: I doubt whether we will make a profit out of it. 我认为我们不可能从此事中获利。 We doubt if she will be persuaded. 我们不知道她会不会被说服。 4. He found that the amount of carbon dioxide keep on increasing during that time.amount n. 数量习惯用语：an amount of 相当数量的; 一些

8、修饰不可数名词amounts of 相当数量的; 一些 修饰不可数名词large amounts of money 大量的金钱keep on 继续 +doing sth.他们虽然很累了，还是继续工作。They keep on working although they are tired.5. result inresult in 结果; 致使; 导致主语：起因 in 的宾语：结果Acting before thinking always results in failure.做事不先考虑总会导致失败。The accident resulted in the death of two peop

9、le.这场意外事故造成两人死亡。result from 起于, 由于, 由引起，主语： 结果 from 的宾语：起因His sickness resulted _in_eating too much. (in / from)6concern 一、concern作动词 v.使担心；使关心；使烦恼 The boys poor performance at school concerned his parents. 这个男孩在学校很差的表现，使他父母很担心。 注意：其过去分词concerned通常作形容词用，意为“ 担心的；烦恼的；忧虑的”。The concerned parents were al

10、l concerned for the childrens safety. 忧心忡忡的家长们都为孩子们的安全担忧。 涉及；与 有关或相关Attend to what concerns you. 注意与你有关的事物。注意：其过去分词concerned常用来作表语，意为“ 和有关；牵涉”；而作定语，则意为“ 有关的” 。 It is reported that the pop singer is concerned with selling drug.据报道，那个流行歌手涉嫌贩毒。 He asked all concerned to take an active part in helping t

11、he girl. 他要求所有相关的人积极帮助那个女孩。 二、concern 作名词 有关的事（可数） Thats my concern, so Ill do as I like about it. 那是我的事，因此，我想怎么做就怎么做。 关怀；关心（不可数） Some people dont show much concern for our environment. 有些人不太关心我们的环境。担心；担忧 She showed great concern about you.她很为你担心。7. rangerange v.排列, 使成行；偏袒，站在 的方面。n. ：范围(尤指从到各种种类,可供选

12、择的范围等，可加不定冠词) ；排列beyond the range of 超越的范围out of ones range 某人达不到的这家商店商品品种多。The shop keeps a wide range of goods.v.排列, 使成行；偏袒，站在的方面。主要搭配为：+名词/代词； +介词+名词/代词；常可用于: 1. 被动结构2. range oneself；3. range from to / betweenand 从到不等。老师令其学生沿着小径排队。The teacher _along the path.温度在 15 度到 35 度之间。The temperature_.我们应当

13、列身于法律与秩序的一边。We should _ on the side of law and order.Keys： ranged his students；ranges from 15 to 35 degrees；range ourselves8. build up逐步建立，增加，增进build up ones fortunebuild up ones strengthbuild up the businessThis built up my hope after the interview.Sediment (沉淀物 )builds up on the ocean floor.Keys：累

14、积财富；养精蓄锐；develop 扩大, 发展； 增加, 支持, 树立；collect 累积, 收集 9.Some byproducts of this process are called “greenhouse” gases, the most important one being carbon dioxide.the most important one being carbon dioxide 是一个独立主格结构，由名词 +分词构成，在句中做补充说明或伴随的状况。_(时间允许的话)，I will show you around the city._(今天是星期天)，I dont ha

15、ve to go to work._(没有人要说的话)，the meeting was closed.Keys： Time permitting；Today being Sunday；Nobody having any more to say10Without the green house effect，the earth would be about thirty-three degrees Celsius cooler than it is.这是一个含蓄虚拟条件句有时假设的情况并不以条件从句形式表示出来，而是通过一个介词短语或其他方式表示。常用的词或短语有：without, but for，but that，otherwise ，or ，but等。 Without your help ( = If we had not had your help)，we could not have succeeded要是没有你的帮助，我们是不会成功的。 Step3 Homework1. Memorize all the language points by heart.2. Finish exercises of Discovering useful words and expressions (P28)