英语必修 第二册Unit 2 Wildlife protection背景图ppt课件

这是一份英语必修 第二册Unit 2 Wildlife protection背景图ppt课件，共20页。PPT课件主要包含了Since，receiving，Only，现在进行时，active，passive，被动语态，现在进行时的被动语态，be done等内容，欢迎下载使用。

1. Watching them mve slwly acrss the green grass, I’m struck by their beauty. 看着它们慢慢地穿过绿色的草地， 我被它们的美深深地打动了。
例：1.Walking in the street, I met a friend f mine.=When I was walking in the street, I met a friend f mine.
2.Failing the exam, he felt upset.=Because he failed the exam, he felt hard, yu will succeed.=If yu wrk hard, yu will sat at the table, reading a magazine.=He sat at the table and read a magazine.
2. The gvernment, hwever, des nt intend t stp the prtectin prgrammes, since the threats t the Tibetan antelpe have nt yet disappeared. 然而， 政府并没有打算停止这些保护项目，因为对藏羚羊的威胁依然存在。
例：1. Yu shuld have a talk with Michael abut hw t learn English better since he is really an expert.
2. Since I will be n hliday with my family next weekend, I shall nt be able t g shpping with yu.
because, as, nw that也可以用来引导原因状语从句
例如本文中：Their habitat were becming smaller as new rads and railways were built.
3. Only when we learn t exist in harmny with nature can we stp being a threat t wildlife and t ur planet. 只有学会和大自然和谐共处， 我们才不会成为野生生物和地球的威胁。
She realized her mistake nly then.Only then did she realize her mistake.We can learn English well nly by practicing mre.Only by practicing mre can we learn English well.He was able t get back hme nly when the prject was cmpleted.Only when the prject was cmpleted was he able t get back hme.
单句填空：1.Nt _________(receive) a reply, he decided t write is here, let’s begin ut in this way can yu make great prgress.
Unit 2现在进行时的被动语态
1.什么是现在进行时的被动语态？
The students are cleaning the classrm nw.The classrm is being cleaned by the students nw.
表示说话时正在进行的被动性的动作，主语是动作的承受者。
2.现在进行时的被动语态的构成
am/is/are being dne
am/is/are+ding
肯定形式： Anther bridge is being built ver the river.否定形式：The engineer is nt being treated fairly.一般疑问句:Is the life f pandas being studied by the students?特殊疑问句：Where is he new science lab being built?
3.现在进行时的被动语态的用法
1.表示此时此刻正在进行的被动动作。My sister is nw being interviewed.2.表示现阶段正在进行的被动动作。Many interesting experiments are being carried ut these days.
3.表示反复进行的被动动作。I feel very surprised that the windw f ur classrm is frequently being brken.
常和awalys、frequently、cnstantly等连用，表示赞扬或厌恶的感情色彩
注意：被动语态中的短语动词要视为一个整体，不能省略介词或副词。They are taking gd care f the patient.The patient is being taken gd care f.
单句填空：A new cinema ________________(build) here. They hpe t finish it next mnth.I dn’t knw what time it is nw. My watch __________________ (repair).With mre frests being destryed, huge quantities f gd earth _________________(wash) away each year.
is being built
is being repaired
are being washed