为什么这些句子read,sleep,drink要加sHe reads before he sleeps.She reads after lunch.(如果是She reads after she lunch.这样也是一个意思吧?）He drinks coffee before works.They drinks coffee after dinner.最后一个应该是They dri

为什么这些句子read,sleep,drink要加sHe reads before he sleeps.She reads after lunch.(如果是She reads after she lunch.这样也是一个意思吧?）He drinks coffee before works.They drinks coffee after dinner.最后一个应该是They dri
为什么这些句子read,sleep,drink要加s
He reads before he sleeps.
She reads after lunch.(如果是She reads after she lunch.这样也是一个意思吧?）
He drinks coffee before works.
They drinks coffee after dinner.
最后一个应该是
They drink coffee after dinner.
为什么这个句子的drink不加S呢。

为什么这些句子read,sleep,drink要加sHe reads before he sleeps.She reads after lunch.(如果是She reads after she lunch.这样也是一个意思吧?）He drinks coffee before works.They drinks coffee after dinner.最后一个应该是They dri
这些都是一般现在时的句子,当主语是第三人称单数时,动词也用三单,所以前3句的动词：reads,drinks都加了s
而最后一句的 They 是非第三人称单数,所以动词要用原形
给你举2个例句你就容易体会一般现在时了
1.I usually go to school by bus.( I - go)
2.Mary often goes to school by bike.( Mary - goes)

语法问题。一般现在时。
he 和she是第三人称单数， they是第三人称复数。只有单数才加的S。祝好，望采纳。

he/she/it是第三人称，后面的动词要用第三人称单数形式。
She reads after lunch.(如果是She reads after she lunch.这样也是一个意思吧？）错，lunch是名词，“吃午饭”的动词是eat lunch或者have lunch, 如果你想改，可以改成She reads after she has lunch.
they 是第三人称复数，...

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he/she/it是第三人称，后面的动词要用第三人称单数形式。
She reads after lunch.(如果是She reads after she lunch.这样也是一个意思吧？）错，lunch是名词，“吃午饭”的动词是eat lunch或者have lunch, 如果你想改，可以改成She reads after she has lunch.
they 是第三人称复数，后面的动词用原型。

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语法一般现在时
因为主语是第三人称单数（she he it）后就用动词加s的形式
He read（s） before he sleep（s）
She read(s) after lunch
主语是其他人称（I we you they ）后就用动词原形
They drink(动词原形) coffee after dinner....

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语法一般现在时
因为主语是第三人称单数（she he it）后就用动词加s的形式
He read（s） before he sleep（s）
She read(s) after lunch
主语是其他人称（I we you they ）后就用动词原形
They drink(动词原形) coffee after dinner.
She reads after lunch.(如果是She reads after she lunch.这样也是一个意思吧？）
这句话你如果想用两个主语的话 正确答案应该是这样的
She reads after she has lunch
lunch是名词 吃午饭应该是have lunch
she是第三人称单数 所以have应变成三单 特殊形式has
谢谢

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前三个句子是单数第三人称作主语，谓语动词要用单数形式加s，最后的句子主语是复数。She reads after lunch。after后是时间状语，如果中间加she，状语中句子缺少谓语