高中Unit 2 Wildlife protection评课课件ppt

这是一份高中Unit 2 Wildlife protection评课课件ppt，共11页。PPT课件主要包含了Summary等内容，欢迎下载使用。
Teaching bjectives:
By the end f this perid, yu will be able t…
1. knw abut the structure f the present cntinuus passive vice and its functin.2. master the usage f the present cntinuus passive vice . 3. use the present cntinuus passive vice flexibly in the real cntext.
1.African elephants are being hunted.→_______________________________________2.What is being dne t help them?→_______________________________________3.What measures are being taken t help them?→_________________________________________Differences：________________________________
Observe and analyze
Underline the present cntinuus passive vice,change them int active vice and cmpare the differences in meaning.
所强调的重点（主语）不同。
Hunters are hunting African elephants.
What are peple ding t help them?
What measures are peple taking t help them?
Summarize the structure f the present cntinuus passive vice.
Structure & Functin
be(am/is/are)＋being dne
be(am/is/are)＋nt＋being dne
be(am/is/are)＋主语＋being dne
特殊疑问词＋be(am/is/are)＋主语＋being dne
1. My sister is nw being interviewed.Functin:__________________________________2. Many interesting experiments are being carried ut these days.Functin:_________________________________________________________________3. He is always being praised by the leader.Functin:_________________________________________________________________ _______________________________________4. A celebratin is being held this weekend fr his success.Functin:______________________________________________
Observe the fllwing sentences and figure ut the functin f the present cntinuus passive vice.
被动语态的使用情境：不知道或者不需要提及动作的发出者；强调动作的承受者。
有时可表示按计划或安排将要进行的一个被动动作。
表示此时此刻正在进行的被动动作。
表示现阶段正在进行的被动动作(该动作在说话的瞬间未必正在进行)。
这种用法常常带有赞扬或厌恶的感情色彩。
表示一种经常性的被动行为，常和always, cnstantly 等表示频度的副词连用，
Chse the suitable verb frms t cmplete the sentences.
Cnslidatin
1. I’m (wrking / being wrked) at hme tday because my ffice is (painted / being painted).2. The alarming reprt is (written / being written). It will be finished sn. 3. What part f the city is (attacked / being attacked) nw?4. Right nw, the deer are (watched / being watched) ver by many vlunteers.5. Wh is (hunting / being hunted) the kangars? Where are they (hunted / being hunted)?6. It is reprted that living spaces fr wildlife are (reduced / being reduced) due t the cutting f trees.
1. The z is pening a new area fr the tw baby elephants.→________________________________________________________________2. The dctrs are nt examining the patient.→________________________________________________________________3. They are raising mre funds fr research int wildlife prtectin.→________________________________________________________________4. The city is setting up a new nature reserve fr endangered animals.→________________________________________________________________5. Tday we are cmpleting ur writing task nline.→________________________________________________________________
Rewrite the sentences using the present cntinuus passive vice.
Tday ur writing task is being cmpleted nline.
A new area is being pened fr the a tw baby elephants (by the z).
The patient is nt being examined (by the dctrs).
Mre funds are being raised fr research int wildlife prtectin.
A new nature reserve is being set up fr endangered animals in/by the city.
In the wetland f my hmetwn, there are many different kinds f animals, including wild birds, fish, snakes, insects and s n. When I was in primary schl, I ften went there with my friends t watch the birds and study them. That was an interesting place fr all f us. But things have begun t change in recent years. Small birds _________________ (catch) with nets. Wild ducks _______________ (sell) at fd markets. Fish and snakes ___________________ (kill) fr fd in restaurants. And even wrse, the wetland ___________________ (destry). Sme parts __________________ (cver) with new huses. Yu can see rubbish everywhere. The wetland ____________________ (pllute) seriusly every day. I am very wrried abut it. What can we d?
Finish the fllwing passage with the present cntinuus passive vice f the verbs in brackets.
is being plluted
are being caught
are being sld
are being killed
is being destryed
are being cvered
Hell, everyne! I've just cme back frm a wnderful trip t Tibet. It was s beautiful there that______.The scenery was s impressive and the air was s fresh and clean._________. Hwever, _______. Cans, _________ as they pass thrugh Tibet. I wrry abut the effect this will have n the lcal shuld all think abut this. A. Visitrs are being tld t pay mre attentin t prtecting the envirnment. B. this beautiful cuntryside is being spiled by careless visitrs C. paper and plastic bags are still being thrwn away by many tur grups D. Hw can we make visitrs mre aware f the damage that is being dne t the envirnment? E. I felt I was in a fairyland(仙境)
Cmplete the speech with the crrect sentences r clauses. Then discuss pssible slutins in grups.
巧学助记主动语态变被动语态的原则: “三变”原则: 原主变为by短语 原宾变为现主语 谓语主动变被动。“三不变”原则: 原句意思不变;原句时态不变 原句主谓宾以外成分不变。