2. I (learn) English for many years.
名校通行證有效作業(yè)系列答案科目：初中英語 來源： 題型：
知識點一 pollution 污染;污染物 pollute認污染相關短語：water pollution水污染;air pollution空氣污染;noise pollution嗓音污染。
1. (詞形填空) our government is taking some action to stop the water (pollute) .
知識點二much cleaner干凈得多
much作程度副詞，修飾形容詞或副詞比較級，意為“ 得多”。
2. (翻譯) 汽車比馬快得多。
The car runs the horse.
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科目：初中英語 來源： 題型：
知識點二 lose one's way = get lost 迷路
2. (同義句轉換) It is easy for people to lose the way in Shanghai.
It is easy for people to in Shanghai.
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() 2. I the Great Wall for many years.
A. knowing B. knew
C.have known D. to know
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知識點二動詞的過去分詞大多數(shù)動詞的過去分詞變化形式同動詞的過去式，可參照動詞的過去式變化規(guī)則。
不規(guī)則動詞的過去分詞變化。右此劫詞的討豐分詞釦過去太的變化形式相同，其變化情況如下：
變化 | 舉例 |
與原形相同 | hit—hit—hit hurt—hurt—hurt |
在原形后加t或d | learn—learnt—learnt hear—heard—heard |
原形中的元音字母有變化 | get—got—got sit—sat—sat |
原形中的輔音字母有變化 | make—made—made spill—spilt—spilt |
原形中的元音字母和輔音字母有變化 | feel—felt—felt sleep—slept—slept |
有些動詞的過去分詞和過去式的變化形式不同，其變化情況如下：
變化 | 舉例 |
與原形相同 | come—came—come run—ran—run |
原形中的元音字母有變化 | ring—rang—rung sing—sang—sung |
在原形后加en | eat—ate—eaten fall—fell—fallen |
在原形后加n | see—saw—seen give —gave—given |
在過去式后加n | steal—stole—stolen break—broke—broken |
原形、過去式和過去分詞詞形差異較大 | do—did—done go—went—gone |
( )3(單項選擇）I won’t go to the concert because I my ticket.
A. lost B. don’t lose c. have lost D. have lose
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() 7. She has never been to the country before, ?
A. has she B. hasn’t she
C. is she D. isn’t she
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Here is a story of the Baiji River Dolphin. It makes its home in the Changjiang River. Over 20 million years ago,the Baiji River Dolphin left the sea,swam up the Changjiang River and has lived there ever since. It has smaller eyes than other kindvS of dolphins because the Changjiang River has many small pieces of earth in it. The small size helps to protect its eyes. However,because it has such small eyes,it can not use its eyes to find food. Instead,this kind of dolphin uses sound waves (聲波) to find food. This makes it so unusual.
About 2,200 years ago,there were thousands of dolphins in the Changjiang River,but today,not many people can see the dolphins. Their population has dropped to 150. Scientists say that the dolphin population has gone down because the population of people on the Chnagjiang River has gone up. They also say that the new dam (大項) on the river is also making the dolphin die because it doesn’t have food to eat.
Scientists have tried different things to save this “panda in the water”，but nothing has helped. What would you do to save this kind of dolphin if you had a chance?
() 6. The Baiji River Dolphin lives .
A. in the Yellow River B. in the Nile River
C. in the Changjiang River D. in the Huaihe River
() 7. We can also call the Baiji River Dolphin “ ”.
A. panda in the sky B. panda on the moon
C. panda in the zoo D. panda in the water
() 8. What makes the Baiji River Dolphin different from other dolphins?
A. Its big nose. B. Its small eyes,
C. Its small ears. D. Its small mouth.
() 9. Why does the Baiji River Dolphin become fewer and fewer?
A. The new dam on the river. B. The population of people has gone up.
C. It has smaller eyes. D. Both A and
() 10. Which is the best title of this passage?
A. The Changjiang River B. The Baiji River Dolphin
C. Population problems D. The rising of population
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