Module4Grammar-Presentperfecttense外研版必修1
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Lesson plan for Great ScientistsTeachi ng Procedurese.The new hybrid rice has been developed by the Yuan Longping High-tech Agriculture Company of China.T:Now answer the following questions.1 .Which sentence is in the present simple(passive voice)?2 .Which sentences are in the past simple(passive voice)?3 .Which sentence refers to the future?4 .Which sentence is in the present perfect?3. Present the passive voice with four tenses on PPT the present simple, the past simple, the futuresimple, and the present perfect; then explain the usage of the sentences from the PPT one by one.4. Conclude the forms of the passive voice and show it on PPT. Let Ss learn to observe the sentences structures and distinguish the different tenses.The teacher guides the students to make a simple summary of the voice they have learned and form a clear concept of it.Stage 3 Practice (10mins)1. Ask Ss to do the exercise 1 and exercise 2 of different tenses about the passive voice. 厂 一Exercise 1 J 1.1 vxltfl monry ______ . Ihe lliedltv illA. was fnundB. find 吊 1 round Ik fonrid«rv cnnriiJ<nt ihiHenvironment _______ hy our furthervl'Jbrh tu induct pullulion.A. had been improved ' hr iniproi «dC?. k impiwcd 1). WHS improvrdXU nalliing _______ , Uiv(K?c3ns «111 turn inlo I LS J I deserts,A. doe\ B* h 刘d been done will 号 JuneExercise 2Fill in the blanks.Part oneLihui: Let's learn other scientists.Lihua: Cailun is a great inventor I'd like to talk.Lihui: Great,we all know that Papermaking _____________________ (invent) by him.Lihua:Yes,with the development of society, different types of paper _____________________ (develope) sofar.Lihui:Maybe in the future, new paper ________________ (create) and ________ (use) in other area.Part 2Tom:Do you know some famous scientists?Tina:Yes,Stephen Hawking,he _________________ (know) at home and abroad widely.Tom:for example?Tina:He ___________ (graduate) from Oxford University.In the 1960s,He (diagnose)with motor neurone disease.but he never gave up, his book A Briefbe +doneDesigning purposeHistory of Time(publish)in 1988.He is so outstanding and we(influence) by him.Tom:Right.we all believe his work(use) in other new field that(explore) by others scientists recently.Stage4 Production Discussion and making sentences in groups.(11 mins ) 1.Teacher show some pictures in the PPT, then ask Ss to discuss and describe the picture byusing the correct form of passive voice in groups. And some prompts are given besides the picture.T: I think you have learned passive voice by hearts. Now, we will make some sentences in passive voice inpassive voice.You know,we should learn not only their forms but also how to use them correctly. Ask Ss todiscuss the exercise in groups and finish it.Practice 1: Make sentences according to the pictures and given words.2.Write a short dialogue within sive sentences to describe the scientists with the right types of PV.Scientists are as follows:MadameCurie,Edison ect.3.Give some comments on the Ss' performance and then give a brief conclusion.Blackboard/PPT Design(板书 /媒体设计)Module 4 The Passive VoiceBe+done1.the present simple: am/is/are+done2.the past simple: was/were+done3.the future simple: will be+done4.the present perfect: have/has+been+done。
Period Three Grammar—The present perfect continuoustense语法感知感知以下课文原句,补全方框下的小题(1)...this is the adventure that I have been dreaming of.(2)We are now camped on the ice and we have been managing to survive...(3)We have been struggling for days,but things on Elephant Island are going from bad to worse.以上句子都用了现在完成进行时,其构成为:have/has+been+现在分词,表示从过去某时起一直持续到现在的动作。
语法精析一、现在完成进行时1.构成:have/has+been+现在分词2.用法(1)现在完成进行时表示动作从过去某一时刻开始一直延续到现在或离现在不远的时间,其动作是否继续下去,则由上下文而定。
这个时态多用于延续性动词,如live,learn,lie,stay,sit,wait,stand,rest,study等,并常和all this week,this month,all night,all the morning,recently等时间状语以及since和for引导的时间状语连用(与since和for连用时,动作常会继续下去)。
I have been waiting for an hour and he still hasn’t turned up.我已经等了一个小时了,可他还没来。
I’ve been writing letters all this morning.整个上午我一直在写信。
How long have you been living here?你在这里住了多久了?(2)有时现在完成进行时所表示的动作并不是一直在不停地进行,而是在断断续续地重复。