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Wildlife protection Grammar ppt原创课件(高中英语必修2)

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Wildlife protection Grammar ppt原创课件(高中英语必修2)Wildlife protection Grammar ppt原创课件(高中英语必修2)
第四学时 Grammar
Wildlife protection
现在进行时的被动语态
一、结构形式:be+being+done(过去分词)
二、意义和用法
1.表示此刻正在进行的动作
She is being examined by the doctor now.
她正接受医生的检查。
2.表示现阶段正在被进行的动作
A new school is being built where there used to be a park.
在原来是公园的地方,一所新学校正在被修建。
3.表示经常的被动行为,常与always,constantly等连用。
She is always being praised by the teacher.
她总得到老师的表扬。
4.与部分情态动词连用,表示对正在发生的动作的推测。
The thief may be being questioned by the police.
那个贼可能正在接受警察审问。
三、注意事项
1.不可遗漏being。
2.有些表示“状态、心理活动、拥有、存在”等的动词,一般不用现在进行时的被动语态,而常用一般现在时的被动语态。
Football is becoming more and more popular. In other words,it is loved by more and more people.
足球现在越来越流行了,换句话说,它被越来越多的人喜爱了。
Mick,you are wanted on the phone.
米克,有你的电话。
3.“be+under/in等介词+名词”结构可表示现在进行时的被动语态的含义。
The problem is under discussion (=is being discussed) at the meeting.
这个问题正在会上被讨论。
The telephone is in use (=is being used).
电话正在通话中。
◆ 典例剖析
现在进行时的被动语态是考查重点,在解题中要十分注意其使用的场合以及表达的结构。这里结合一些典型考题对现在进行时被动语态的用法加以深入细致的分析,以使我们认识到该语态命题的方向、思路以及解题的方法。
—Have you moved into the new house?
—Not yet.The rooms ________.
A.are being painted   B.are painting
C.are painted D.are being painting
解析:通过题干情景,我们不难看出,由于正在粉刷,因此还不能搬进新房子。分析选项,B项语态不对;C项时态不对;D项结构错误,所以正确答案应该是A。
答案:A
—Look!Everything here is under construction.
—What's the pretty small house that______ still______ for?
A.is,being built B.has,been built
C.is,built D.is,been built
解析:解题时应首先突破答语的结构:“What's + 主语 +for?”整个答语的意思是:“正在建设中的这座漂亮小房子是干什么用的?”主语带有一个定语从句,从句应该使用现在进行时的被动语态,所以答案应该是A。
答案:A
Selecting a mobile phone for personal use is no easy task because technology ________ so rapidly.
A.is changing B.has changed
C.will have changed D.will change
解析:答案为A。此题考查现在进行时态的用法。句意为“选择一部移动电话不是一件容易的事,因为科技发展得十分迅速。”本句的主句一般现在时表达的是目前的情况,而“科技发展迅速”也是现阶段正存在的一种状态,不是在过去,也不是在将来,因此只能用现在进行时表达。
答案:A
一、单项选择
1.—Excuse me, what time is it now? ( )
—Sorry, my watch ______.It ______ at the shop.
A.isn't working; is being repaired
B.doesn't work; is being repaired
C.isn't working; is repaired
D.doesn't work; is repaired
2.I'm sorry, sir. Your recorder isn't ready yet. It ________in the factory. ( )
A.is being repaired    B.is repaired
C.has been repaired D.hasn't repaired
B
A
3.Some measures ________to protect wildlife resources now. ( )
A.are taking B.are taken
C.are being taken D.being taken
4.It is well­known to us that a lot of rivers ________by the factories. ( )
A.are polluting B.have been polluting
C.are being polluting D.are being polluted
C
D
5.A new building ________ at the other side of the street. Work started last year and the building is expected to open next year. ( )
A.is built B.is being built
C.has built D.will be built
6.My sister wants to work in the factory which ________still ________. ( )
A.is; building B.has; been built
C.is; being built D.is; to be built
B
C
7.Rainforests ________and burned at such a speed and they will disappear from the earth in the near future. ( )
A.cut B.are cut
C.are being cut D.had been cut
8.—Do you like the material? ( )
—Yes, it______ very soft.
A.is feeling B.is being felt
C.feels D.is felt
C
C
二、完成句子
1.Don't make any noise. Her mother ____________ (正在体检)by a doctor. (examine)
2.The drivers are told that the road ______________ (正在修理中).(repair)
1.is being examined 
2.is being repaired/is under repair
3.It is reported that a new airport in Kunming which __________(正在建设中)falls down. (build)
4.He noticed that he ________(有人跟踪他)by a strange man when he was walking in the street. (follow)
5.The cause of the accident ___________(正在调查中) so you needn't worry. (look into)
3.is being built 4.was being followed
5.is being looked into
三、用所给动词的适当时态及语态填空
A new factory __1__ (build) near my village. The trees __2__ (cut) down and the ground has been flattened. Now many materials__3__ (transport) here,including wood,sand,cement,and so on. Some houses were built and some __4__ still __5__ (build).
1.is being built  2.have been cut
3.are being transported 4.are
5.being built
Some people say more chances __6__ (provide) for young villagers. However,I am worried about the environment. As trees __7__ (cut) down,many birds __8__ (force) to leave their habitat. The river behind our village __9__ (pollute) and fish are being killed by the polluted water. Our peaceful environment __10__ (destroy).I think something __11__ (do) to protect the environment.
6.are being provided 7.have been cut 
8.are being forced  9.is being polluted 
10.is being destroyed  11.should be done


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