資源簡介

(共26張PPT)
Unit 2
Wildlife Protection
Period 3 Discovering Useful Structures
課前自主預習
Let′s play
1. When Mary was playing by the woods，she happened to
see a 　　　　　(袋鼠) come by.
2. The design of the bicycle has managed to ___________
(減少) the effects of wind resistance.
一、單詞拼寫
kangaroo
reduce
3. The students in our class often do volunteer work in the
__________________(街區).
4. I have never seen this kind of　　　　　(昆蟲) before.
neighbourhood　
insects
考點精講
1. reduce vt. 減少
Eg. It is reported that living spaces for wildlife are being reduced due to the cutting of trees.
據報道，由于砍伐樹木，野生動物的生存空間正在減少。
【詞匯拓展】
reduce···by··· 把···減少了···
reduce···to···把···減少到···；把···變為某種狀態
be reduced to 陷入某種境地 (to 為介詞)
2. due adj.由于；因為；到期的；應付的；應有的
Eg. It is reported that living spaces for wildlife are being reduced due to the cutting of trees.
據報道，由于砍伐樹木，野生動物的生存空間正在減少。
常和to連用。
現在進行時的被動語態
【思維導圖】
現在進行時的被動語態是中學英語語法中的一種非常重要的英語時態，它屬于現在時態。
一、含義與結構
[合作探究]
African elephants are being hunted.
非洲大象正在被獵殺。
What is being done to help them
現在可以做些什么來幫助它們呢？
What measures are being taken to help them
現在可以采取哪些措施來幫助它們呢？
[自主發現1]
(1) 現在進行時的被動語態表示說話人說話時或現階段
某事____________。
(2) 現在進行時的被動語態的構成：
① be＋being＋done (____________)；
②“be being done” 中的動詞______應隨主語作相應的變化。
正在被做
過去分詞
be
[提醒]　現在進行時的被動語態中不能漏掉“_______”。
being
[自主發現2]
現在進行時的被動語態的主要形式有：肯定式；否定式；疑問式。它們的具體構成如下：
(1)肯定式：主語＋____________＋____________
(2)否定式：主語＋____________＋____________＋____________.
am/is/are
being done
am/is/are
not
being done
(3) 疑問式：________疑問式 [“Am/Is/Are＋(not)＋主語＋being done”]；________疑問式[“特殊疑問詞＋am/is/are＋(not)＋being done”]。
一般
特殊
既學既練
一、用所給詞的適當形式填空.
① An interesting experiment _______________ (carry) out now.
② We can hear that the papers __________________ (print) quickly on the fast-moving printing machines.
is being carried
are being printed
③ What you ______________ (tell) is true.
④ Some animals _____________________ (not protect)
well enough.
are being told
are not being protected
二、同義句轉換
① They are studying the life of the panda at present.
→The life of the panda _____________ at present by them.
② The doctor is operating on the patient inside now.
→The patient _____________________ by the doctors inside now.
is being studied
is being operated on
③ Are they building the bridge at present
→Is the bridge ________________ by them at present
being built
三、單句語法填空/補全句子
① A lot of wild animals __________________ (kill) by
hunters in Africa today.
② I have to go to work by taxi because my car
________________ (正在修理) at the garage.
are being killed
is being repaired
③ How many bridges ________________ (正在修建) in
the village now
④ Look! The foreign guests _______________________
(正在被帶領參觀) the factory by Mr.Zhang.
are being built
are being shown around
四、補全句子/同義句轉換/一句多譯.
①— Do you know what Smith is doing
— He is ill. He _____________________by the doctor.
— 你知道史密斯正在做什么嗎？
— 他病了。他可能正在接受醫生的檢查。
may be being examined
二、動詞填空
1. I can′t use my car today because it __________________
(repair) in the garage.
2. They have to sit outside because the rooms ___________
__________________ (paint).
3. At present，a meeting ______________(hold) to discuss
the question.
is being repaired
are being painted
is being held
4. Don′t worry. Supper __________________ (prepare) in
the kitchen.
5. Now effective measures __________________ (take) to
prevent the rivers from being polluted.
is being prepared
are being taken
When was in primary school， often went there with my friends to watch the birds and study them. That was an interesting place for all of us. But things have begun to change in recent years. Small birds _________________ (catch) with nets網. Wild ducks ________________ (sell) at food markets. Fish and snakes ______________ (kill) for food in restaurants.
are being caught
are being sold
are being killed
And even worse，the wetland ________________ (destroy). Some parts _______________(cover) with new houses. You can see rubbish everywhere. The wetland _______________ (pollute) seriously every day. I am very worried about it. What can we do
is being destroyed
are being covered
is being polluted

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