主动语态变被动语态专题练习解读

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 cutB. stop from cuttingC. be kept cuttingD. be stopped from cutting2.He _____ in the classroom just now. He ______ be there now.A. heard to sing;mayB. was heard sing; mustC. heard sing; mustD. was heard to sing; may3. ---I want to teach in this area.---Well, teachers ______ very much here.A. needB. are needingC. are neededD. will need4. A report says hundreds of thousands of trees ______ in the Amzaon rainforest last year.A. was cut downB. have been cut downC. were cut downD. has been cut down5. ---What about the pen you bought yesterday?---It ______ well. I like it very well.A. was writtenB. is writtenC. wroteD. Writes6. ---Sixteen-year-olds _____ to drive.---I agree. They aren’t serious enough at that age.A. shouldn’t be allowedB. shouldn’t allowC. don’t allowD. are allowed not7. The village is building a school. I hope it _____ before August this year.A. FinishesB. will finishC. is finishedD. 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a deep blue skirt 深蓝色的裙子 a dark grey suit 深灰色的套服4. 强调形容词有些形容词起强调作用，如：It’s an utter mystery.这完全是个谜。

I have perfect trust in his judgement. 我绝对信任他的判断力。

5. -ing 形容词1）有大量现在分词正在或已经变为形容词，如：It was a tiring journey. 这真是一趟累人的旅行。

This is a convincing argument. 这是个有说服力的论据。

这样的形容词多由及物动词变来。

有很多也是品质形容词，有时可用于最高级（如most amazing, most disappointing）。

2）还有一些形容词和不及物动词有关，如：We hope to lessen the existing tension. 我们希望缓解目前的紧张局势。

He’s one of the greatest living composers.他是当今最伟大的作曲家之一。

这类形容词只能作定语，不能用于比较级。

3）还有一些-ing形容词并不与动词有关，如：neighbouring cities 邻近的城市 a cunning trick 狡猾的计谋6. –ed形容词1）大多数-ed形容词都与及物动词有关，是由它们的过去分词变过来的，一般有被动意义，多数为品质形容词，如：She looked embarrassed. 他好象很尴尬。

These people are from distressed areas. 这些人来自贫苦地区。

I felt depressed. 我感到很沮丧。

2）有些-ed形容词可说是类属形容词，也由动词的过去分词变来，但不能用于比较级，如：You have to pass the required examination to become a doctor. 你需要通过规定的考试才能成为医生。

She is a trained nurse. 她是一个受过训练的护士。

3）有少数-ed形容词，不是由动词，而是由名词变来的：skilled workers 技术工人 salaried class 工薪阶层a flowered headscarf 印花头巾还有少数-ed形容词，和动词名词都没有关系：beloved leaders 受爱戴的领导 his deceased aunt 他死去的姨4）有些-ed 的形容词包含有副词：a well-equipped army 一支装备精良的部队 a well-known musician 著名的音乐家7. 合成形容词1）形容词在英语中是比较普遍的，最常见的有：a. 形容词+名词+ed: good-natured 天性善良的b. 副词+过去分词：low-paid 工资很低的c. 形容词+现在分词： easy-going 好说话的d. 副词+现在分词： low-lying 低洼的e. 名词+现在分词：heart-breaking 令人心碎的f. 形容词+名词： present-day 当代的2）还有一些其他类型的合成形容词，如：a two-piece suit 两件套的西服all-out attempt 全力以赴的努力take-home pay 扣税后的实得工资3）还有一些三个或更多词构成的和成形容词，如：wait-and-see policy 观望政策 heart-to-heart talk 推心置腹的谈话an out-of-the-way place 偏僻之地an-out-of-date driving license 过期驾照三、形容词的用法和在句中的位置1. 形容词在句中主要可用作：1）定语：What a fine day! 多好的天气！He is a self-made man. 他是个自学成材的人。

2）表语：The scene was horrifying. 这景象很恐怖。

I am getting bored and homesick. 我感到有些厌烦想家。

His comments were well-meant. 他说这些都是出于好心。