高中Unit 2 Wildlife protection教学演示ppt课件

这是一份高中Unit 2 Wildlife protection教学演示ppt课件，共25页。PPT课件主要包含了单元语法精析，Are，Where are，polluted等内容，欢迎下载使用。
Sectin Ⅱ　Discvering Useful Structures
现在进行时的被动语态语法导图
语法讲练一、现在进行时的被动语态的结构
D　典例呈现It is reprted that rainfrests are being cut and burned at such a speed that they will disappear frm the earth in the near future.据报道，热带雨林正以如此快的速度被砍伐和燃烧，以致在不久的将来它们将从地球上消失。Are the new babies being taken care f by this nurse?这些新生婴儿正由这个护士照看吗？Wh is being trained fr the cming English speech cntest?谁正在为即将到来的英语演讲比赛接受训练？
J　即学即练1句型转换Many athletes are making preparatins fr the 2022 Winter Olympic Games in Beijing.(1)Preparatins _____________________ the 2022 Winter Olympic Games in Beijing.(改为被动语态)(2)Preparatins ________________________ the 2022 Winter Olympic Games in Beijing.(把句(1)改为否定句)
are being made fr
aren't being made fr
(3)______ preparatins being made fr the 2022 Winter Olympic Games in Beijing？(把句(1)改为一般疑问句)(4)____________ preparatins _________________ the 2022 Winter Olympic Games？(对句(1)中的in Beijing进行提问)
being made fr
二、现在进行时的被动语态的用法1．表示此刻正被进行的动作，句中常用nw，at the mment等时间状语D　典例呈现Mre patients are being examined by the dctr nw.更多的病人现在正在接受医生的检查。Several new lines are being built nw and will be cmpleted in the near future.几条新路线正在修建，最近就要完成了。
2．表示现阶段正被进行的动作，但此动作在此时此刻不一定正在发生D　典例呈现Many interesting experiments are being carried ut these days.这些天许多有趣的实验正在被进行。(说话时并不一定正在进行)Our children are being educated t be green in everything they d.我们的孩子所受的教育是凡事都要注重环保。
3．表示一种经常性的被动行为，常和always，cnstantly，frequently等表示频率的副词连用，这种用法常常带有说话者的赞扬或厌恶的感情色彩D　典例呈现I wnder why the windw f ur classrm is frequently being brken.我想知道为什么我们教室的窗户经常被打破。Players are always being encuraged t talk as if they are fans first.人们总是鼓励球员们首先要以自己是个球迷的口吻说话。
J　即学即练2英译汉(1)The reprt abut cyberbullying is being written by ne f the best students.__________________________________________________________(2)The film is being shwn in the small village these days.____________________________________________________(3)The yung man is always being praised by the bss.__________________________________________________
这个关于网络霸凌的报告正在由一位最好的学生撰写。
这几天这部电影正在这个小村庄放映。
这个年轻人总是受到老板的表扬。
三、现在进行时的被动语态的注意事项1．不可遗忘的being现在进行时的被动语态中，be为第一助动词，being为第二助动词，缺一不可，且位置不可互换。此结构若缺少being，则成为一般现在时的被动语态或系表结构。试比较：D　典例呈现The reprt n the prtectin f the wildlife is being written by Jim.这个关于野生动物保护的报告正在由吉姆撰写。The reprt n the prtectin f the wildlife is well written.这个关于野生动物保护的报告写得很好。(系表结构)
2．不可遗漏介词take care f，lk after，talk abut，think f 等动词短语用于现在进行时的被动语态时，其中的介词不可省略。D　典例呈现Lk！The children are being taken care f by their aunt.瞧！那些孩子正由他们的姨妈照看着。That tpic f wildlife prtectin is being talked abut by the famus lecturer nw.那个关于野生动物保护的话题现在正在被那位著名的演讲者谈论着。
3．没有现在进行时的被动语态的动词不及物动词(短语)、非延续性动词、表示存在意义/所属关系/静态特征的动词以及系动词不用于现在进行时的被动语态。如last，have，wn，belng t，cnsist f等。D　典例呈现The bk n the shelf belngs t him.书架上的这本书是他的。My breakfast cnsists f bread，jam and milk.我的早餐通常是面包、果酱和牛奶。
4．“be＋under/in等介词＋名词”结构可表示现在进行时的被动语态D　典例呈现My cellphne is under repair(being repaired)，s I have t use this ld style fr the time.我的手机正在修理中，所以我得暂时用这种旧款式的手机。
J　即学即练3单句写作(1)我觉得对当地动物的保护力度不够。I feel that nt enugh ________________ t prtect the lcal animal life.(2)这个问题正在会上讨论。The questin ______________________ in the meeting.(3)风向正在改变，因此暴风雨不会持续太长的时间。The wind is changing rund，s the strm _____________ lng.(4)会议上正在讨论这些问题。The questins _________________________ at the meeting nw.
is being dne
is under discussin
are being talked abut
专项练习Ⅰ.用所给词的适当形式填空1．They are living with their parents fr the mment because their wn huse ___________________(rebuild)．2．Many interesting experiments ____________________(carry) ut these days.3．These children ___________________(lk) after by an ld man nw.
is being rebuilt
are being carried
are being lked
4．Wait a minute. The dishes fr the dinner __________________(ck) in the kitchen.5．He ____________________(punish) fr his mistakes at the mment.6．The sprts meeting ________________(hld) in ur schl nw.7．S many things _________________(d) here t prevent air pllutin.8．A bridge _________________(build) in the distance and its cnstructin ___________________(finish) in a year.
are being cked
is being punished
is being held
are being dne
is being built
will be finished
Ⅱ.把下面的句子改成被动语态1．The gvernment is making great effrts t imprve the living cnditins f peple.→Great effrts _________________ t imprve the living cnditins f peple by the gvernment.2．The farmers are cutting dwn the jungles in this area s quickly that the wild animals may lse their hmes in the near future.→The jungles in this area _____________________ by the farmers s quickly that the wild animals may lse their hmes in the near future.
are being made
are being cut dwn
3．Peple are hunting t many animals these years in sme places.→T many animals ___________________ by peple these years in sme places.4．The teacher is crrecting the papers in her ffice.→The papers ______________________ by the teacher in her ffice.5．Our headmaster is preparing a speech nw.→A speech ____________________ by ur headmaster nw.6．The family are building a new huse ver there.→A new huse _________________ by the family ver there.
are being hunted
are being crrected
is being prepared
is being built
7．The dctrs are perating n his left leg.→His left leg _______________________ by the dctrs.8．The farmers are harvesting crps in the field with their faces cvered with sweat.→The crps in the field ______________________ by the farmers with their faces cvered with sweat.9．They are discussing whether they will g fr a picnic tmrrw.→Whether they will g fr a picnic tmrrw _____________________ by them.
is being perated n
are being harvested
is being discussed
10．The gvernment is prtecting the tigers in the newly-built reserve.→The tigers ______________________ in the newly-built reserve by the gvernment.
are being prtected
Ⅲ.语法主题应用Dear Sir r Madam，I'm writing t give sme suggestins t prtect the wildlife living in and arund ur city. As we knw, many species f wildlife are in danger f extinctin. This is because the envirnment that they are living in ______________________(正在被毁坏) greatly.With the develpment f cities, water and air ________________________________(正在被严重污染). Their living areas are becming smaller and smaller. They nt nly have little t eat, but als ____________________(正在被猎杀) by human beings. These species f
1.is being destryed　
2.are being seriusly
3.are being hunted