内容正文:
小学语法精讲精练 专题07 助动词
思考引入
这个助动词看起来很眼熟啊!
既然眼熟,那你来说说在哪里见过它吧!
我们之前学陈述句和疑问句的时候就见过呀,我还记得有一种疑问句就是"助动词+主语+其他"构成的。
对!我们今天要学的就是这个助动词。助动词,顾名思义就是起辅助作用的动词。助动词不能单独作谓语,通常与实义动词一起构成各种时态、语态,以及否定、疑问结构等。今天我们要学习4个常见的助动词:do,will,be,have。
知识概览
知识精讲
一、助动词do
do作助动词时,主要与动词原形一起构成一般现在和一般过去时态,用于否定句和疑问句中,有do,does,did三种形式。
1.do,does用于一般现在时态
(1)当主语是“I, you,we, they”或复数名词时,用do
Do you like hamburgers?你喜欢汉堡吗?
What do they like?他们喜欢什么?
I don't have a football.我没有足球。
We don't have English on Monday.我们周一没有英语课。
They don't have too much homework today.他们今天的家庭作业不多。
(2)当主语是“she,he,it”或单数可数名词时,用does
She doesn't go shopping on Sundays.她星期天不去购物。
He doesn't go to school today.他今天不去上学。
How much does it cost to become a member?要成为会员得花多少钱?
Does your dad go to work on Saturdays?你爸爸周六上班吗?
2.did用于一般过去时态,无主语人称限制
Did you watch TV last night?昨天晚上你看电视了吗?
Where did he live last year?他去年住在哪里?
I didn't go swimming yesterday.我昨天没去游泳。
Linda didn't go to Hangzhou yesterday.琳达昨天没去杭州。
热身小练①
翻一翻。请你将下列中文句子翻译成英文。
1.我不喜欢看电视。
_____________________________________________________
2.我昨天没看见你。
_____________________________________________________
3.——海伦周末经常做什么?
——她经常去拜访她的祖父母。
_____________________________________________________
_____________________________________________________
答案:1.I don't like watching TV.2.I didn't see you yesterday.
3. What does Helen often do on weekends? She often visits her grandparents.
二、助动词will
will作助动词时,主要与动词原形一起构成一般将来时态,表示“将要……”,只有这一种形式。
I will go to Beijing.我将要去北京。
She will have a meeting this afternoon.今天下午她要参加一个会议。
What will you do next week?你下周要做什么?
— Will you take your kite tomorrow?你明天要带你的风筝吗?
—No, I won't(= will not).不,我不会带。
热身小练②
翻一翻。请你将下列中文句子翻译成英文。
1.我们明天去拜访他。
_____________________________________________________
2.放学后他将和朋友们一起打篮球。
_____________________________________________________
答案:1. We will visit him tomorrow. 2. He will play basketball with friends after school.
三、助动词be
be作助动词时,主要与动词的现在分词一起构成进行时态,表示“正在……”,有am,is,are, was, were五种形式。
1.am,is,are用于现在进行时
I am watching TV.我正在看电视。
He is re