英语选修7北师大版UNIT20课件PPT：L-2《4》19张.ppt

1、Lesson 2 Artificial IntelligenceUnit 20 New FrontierGrammarThe future1.review Future Tense(复习一般将来时)构成:助动词shall或will+动词原形构成.第一人称用shall或will,其它人称用will.Eg:He will be back in a few days.Shall I go with you?用法：表示将来发生的动作或存在的状态，常与表将来的时间状语连用其它形式：be going to+动词原形：打算，计划，准备做某事be to+动词原形：指安排好的事be about to+动词原形：

2、指即将发生的事一般现在时和现在进行时也可表示将来的动作2.Future perfect(将来完成时)构成:shall/will have+动词的过去分词用法:表示动作或状态延续到将来某一时间.常用延续性动词,并有一个表示将来某一时间的状语或状语从句.Eg:He will have been in the army for 10 years by next June.We shall have walked a long way before we reach the village.表示动作或状态在将来某一时间以前已经结束,但其影响却延续到那一时间.Eg:I shall have finish

3、ed my homework by ten oclock.When the old man comes next week,his son will have left for Shanghai.3.Future continuous(将来进行时)构成:shall/will be+现在分词用法:表示在将来某一时刻或某一段时间正在进行的动作,常常带有时间状语短语或时间状语从句.Eg:I will be busy this evening.I will be writing an article.表示按计划将来要发生的动作.Eg:I hope you will be coming on time.

4、They will be having their holiday in June.4.Do exercise 8 in page 21Complete the sentences using the Present Perfect1.Ill help you as soon as I 2.She cant buy a computer until she3.You can leave the exam room only after you4.Ill phone you when I5.Well let you know as soon as6.Your telephone line wil

5、l start working only after5.Do exercise 2 in page 66Put the verbs in brackets into the Future Perfect1.By Christmas they(sell)over five million greetings cards2.By this summer the city council (spend)$2 million on redecorating the old town.3.By 2030 the climate in Europe (become)much warmer.4.By the

6、 end of this decade our town(invest)$1 million in the tourist industry.5.By the next Olympic Games many records in sport(be)broken.Answers:2.will have spent3.will have become4.will have invested5.will have been 6.will have died6.Do exercise 4 in page 66Complete the sentences with a verb from the box

7、 in the Future Continuous:give,work,write,drive,put up,use1.I wont be able to answer the phone in the afternoon.I()a talk at a conference.2.why dont you drop by on Wed.night?I()a tennisMatch and it will be more fun if someone joins me.3.I()to town in the afternoon.would you like me to give you a lif

8、t?4.()you()your bike this afternoon?could I borrow it?5.This time on Sat.I()my tent by the lake.6.We shouldnt disturb them tonight.Trica()her article and Nick()on his lecture.Answers:2.I will be watching3.will be driving4.Will,be using5.will be putting up6.will be workinglearn the new words of lesso

9、n 2listeningExercise 1 Discussion1.What science fiction films have you seen that are about intelligent robots or robots that look like humans?2.How did the robots behave towards humans?3.Which of these things can robots and computers do now?work in factories,play football,control cars and Planes,bea

10、t us at chess,write music,give us the news,speak to us,have feelingshave a real conversation with us,Exercise 2 Questions1.where can you see and hear her?what does she do?2.does Ananova really exist?can she really talk?3.why are there no photos of her as a child?4.how does she find news stories?5.wh

11、at are her plans for the future?Exercise 2 Answers1.On the Internet.She presents the news 24 hours a day.2.No.No.3.Because she isnt human and she was created in 1999.Shes never been a child.4.She has her own search engine.5.Shell be adding more languages and giving personal news directly to mobile p

12、honesExercise 3 Complete the Function FileAnswers:(1)what I mean is (2)is that clear?(3)what Im trying to say(4)Could you explain now?(5)To put it another way(6)In other words(7)What I dont quite understand(8)What Im getting at(9)thats a program which(10)So does that mean(11)I mean(12)What that meansExercise 6 listen to the tape and complete the notesAnswers:1.19682.the premiere3.strange and confusing4.four million years ago5.an advanced alien civilization6.the moon7.another planet 8.real planHomeworkExercise 9 in page 21