文档介绍：Unit 5 What are the shirts made of?
语法
一般现在时的被动语态
:主动语态和被动语态:主动语态表示主语是动作的执行者;
被动语态表示主语是动作的承受者
Cats eat fish. (主动语态)
Fish is eaten by cats.(被动语态)
一般现在时常与often(经常),usually(通常),sometimes(有时),always(总是),等频度副词连用,它们在句中的位置是实前系后情助后。另外every day,every morning,等,也是一般现在时的信息标志词。它们通常放在句首或句末。
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一般现在时主动语态可以分成两类:一类是带be的,另一类是带实义动词的。
带be的各种句式的构成
(1)肯定句的构成是:主语+ is/am/ are +其他 She is a student.
(2)否定句的构成是:主语+is/am/are + not +其他 She isn’t a student.
(3)一般疑问句的构成是:Is/Am/Are+主语+其他? Is she a student?
肯定回答是:Yes,主语+is/am/are Yes,she is.
否定回答是:No,主语+is/am/are +not No,she isn’t
(4)特殊疑问句的构成是:疑问词+ is/am/are+主语+其他?
She is a student?What is she?
带实义动词的各种句式的构成
(1)肯定句的构成是:主语+ 动词原形/三单+其他
Chinese people speak Chinese.
(2)否定句的构成是:主语+ don’t/doesn’t +动词原形+其他
Chinese people don’t speak Chinese.
(3)一般疑问句的构成是:Do/Does +主语+动词原形+其他?
Do Chinese people speak Chinese? Yes,they ,they don’t
肯定回答是:Yes,主语+do/does.
否定回答是:No,主语+don’t/doesn’t
(4)特殊疑问句的构成是:疑问词+ do/does +主语+动词原形+其他??
Chinese people speak Chinese. What language do Chinese people speak?
:主语+is/am/are+动词过去分词+by短语+其他
Chinese is spoken by Chinese people.
(1)否定句的构成是: 主语+is/am/are+not+动词过去分词+by短语+其他
Chinese isn’t spoken by Chinese people.
(2)一般疑问句的构成是: Is/Am/Are+主语+动词过去分词+by短语+其他
Is Chinese spoken by Chinese ,it ,it isn’t
肯定回答是:Yes,主语+is/am/are
否定回答是:No,主语+is/am/are +not
(3)特殊疑问句的构成是:疑问词+ is/am/are+主语+动词过去分词+by短语+其他
Chinese is spoken by Chinese people.
Who is Chinese spoken by?
(1)People use stamps for sending letters.(改为被动语态)
Stamps for sending letters by people.
(2)We use a recorder in our English class.(改为被动语态)
A recorder in our English class by .
(3)One of the classroom is often cleaned.(改为否定句)
One of the classroom often .
(4)This kind of paper is made of wood.(就画线部分提问)
this kind of paper of?
(5)This orphan is taken care of by an old lady.(改为一般疑问句)
this orphan care of by an old lady?
(6)—Is it used f