主动语态变被动语态专题练习
一、将下列主动语态的句子变为被动语态 1. Teachers must take good care of the student.
2. Was another man-made satellite sent up into the space by them last week.
3. People plant many trees on either side of the street each year.
4. Li Lei mended the bike.
5. A famous American writer wrote the book Red Star Over China years ago.
6. Two years ago we used that machine to make shoes for children.
7. Ken is often heard to apologize to his teacher.
8. People there didn’t plant any trees last year.
9. We call him David.
10. We will plant some trees in the garden this year.
11. Do young people usually listen to pop music?
12. We should help the disabled people.
13. Jenny showed me the picture.
14. My mother gave me a dictionary as a birthday present.
15. We heard Jim playing the guitar in his room.
二、单项选择
1. Today, the forests have almost gone. People must ______ down too many trees.
A. stop to cut B. stop from cutting C. be kept cutting D. be stopped from cutting 2.He _____ in the classroom just now. He ______ be there now.
A. heard to sing;may B. was heard sing; must C. heard sing; must D. was heard to sing; may
3. ---I want to teach in this area.
---Well, teachers ______ very much here.
A. need B. are needing C. are needed D. will need 4. A report says hundreds of thousands of trees ______ in the Amzaon rainforest last year.
A. was cut down B. have been cut down C. were cut down D. has been cut down
5. ---What about the pen you bought yesterday? ---It ______ well. I like it very well.
A. was written B. is written C. wrote D. Writes 6. ---Sixteen-year-olds _____ to drive.
---I agree. They aren’t serious enough at that age.
A. shouldn’t be allowed B. shouldn’t allow C. don’t allow D. are allowed not
7. The village is building a school. I hope it _____ before August this year. A. Finishes B. will finish C. is finished D. will be finished
【形容词】
形容词修饰名词，说明事物或人的性质或特征。通常，可将形容词分成性质形容词和叙述形容词两类，其位置不一定都放在名词前面。
1）直接说明事物的性质或特征的形容词是性质形容词，它有级的变化，可以用程度副词修饰，在句中可作定语、表语和补语。例如：hot。
2）叙述形容词只能作表语，所以又称为表语形容词。这类形容词没有级的变化，也不可用程度副词修饰。大多数以a开头的形容词都属于这一类。例如：afraid 害怕的。
按其结构，可分为单个形容词和复合形容词。前者由一个单词（如good, short, happy）构成，而后者则由两个以上的单词（如well-known, kind-hearted, five-year-old）构成。 二、形容词的种类
1. 品质形容词 英语中大量形容词属于这一类，他们表示人或物的品质，如： He’s the happiest man on earth. 他是地球上最快乐的人。 The play was boring. 那出戏很枯燥乏味。 You have an honest face. 你有一张诚实的脸。
这类形容词一般都能用于比较级，如 bigger, simpler, younger. 2. 类属形容词 这类形容词表示属于哪一类，如：
These subjects reflect our daily lives. 这些题材反映我们的日常生活。 This medicine is for external use only. 此药仅供外用。 这类形容词一般都不能用于比较级。
3. 颜色形容词 有少数表示颜色的形容词，如： His face went purple with rage. 他的脸气得发青。 She had on a blue coat. 她穿了一件蓝色的外套。 Carrots are orange. 胡萝卜是 橘红色的。
这类词前面还可加light, pale, dark, deep, bright 等词，如：
light brown hair 淡蓝色头发 a pale green dress 淡绿色裙服