实义动词的一般现在时
- 格式:doc
- 大小:25.50 KB
- 文档页数:1
一般现在时的结构和用法
一、一般现在时的结构
1.谓语为be动词(am/is/are)的一般现在时:
结构:主语+ be(am/is/are) + 表语(形容词、名词充当表语)
否定式:主语+ be(am/is/are) + not + 表语(形容词、名词充当表语)
疑问句:Be(am/is/are) + 主语+ 表语(形容词、名词充当表语)?
2.谓语为实义动词(及物动词或不及物动词)的一般现在时:
当主语为第三人称单数时:主语+ 动词第三人称单数形式+ 其他当主语为非第三人称单数时:主语+ 动词原形+ 其他
否定式:
当主语为第三人称单数时:主语+ doesn't + 动词原形+ 其他
当主语为非第三人称单数时:主语+ don't + 动词原形+ 其他
疑问句:
当主语为第三人称单数时:Does + 主语+ 动词原形+ 其他?
当主语为非第三人称单数时:Do + 主语+ 动词原形+ 其他?
特殊疑问句:特殊疑问词+ 一般疑问句?
二、一般现在时的用法
1.描述习惯性或经常性的动作:如“I usually go to bed at 11 pm.”
2.表达客观事实或普遍真理:如“The sun rises in the east.”
3.描述时间表或日程安排:如“The train leaves at 8 am.”
4.在新闻报道或科技文章中描述当前状况:如“The company is developing a new product.”。
实义动词的词形变化一.原形(do)1.一般现在时(用于非单数第三人称)例如 We know him.2.情态动词后例如 I can swim.3.助动词后例如 She doesn’t like swimming.Does she like eggs ?4.祈使句首例如 Stand up ,please.5.固定句型例如 Let me watch TV.二.单数第三人称(does)1.一般现在时。
(he ,she ,it 或它们代替的词)例如 He has a cat .She enjoys watching TV.I t often rains .This desk has four legs .2.表示猜测Who knows the answer ?三.不定式(to do)1句型want to do sthwould like to do sthdecide to do sthit is time to do sthask sb to do sthtell sb to do sth2两个动作之间例如 I can come to see you.四.现在分词(doing)用于现在进行时中例如 She is watching TV.五.动名词(doing)1.标题:Unite 8 Playing games.2.作主语:Running is good for you.3.介词后:I want some water after running.4.固定句型:She enjoys watching TV.。
一般现在时在英语中,不同的动词形式用来表达发生在不同时间的动作。
这种不同的动词形式被称为动词时态。
一般现在时动词使用动词的原型或第三人称的单数形式。
它是英语十六种时态之一,用来表示习惯性或经常性的动作,也可以表示现在的状态或主体具有不同的个性和能力,以及普遍真理和自然规律。
一般现在时的三种形式1、be动词的一般现在时一般现在时语句中的be动词包括am,is,re,中文意思翻译为“是”,句子中使用这三个词中的哪一个要看主语的人称。
主语为第一人称单数(I)用am,主语为第三人单数(he,she,it)用is,主语为复数或第二人称(we,you,they)用are。
如:I am a student.我是学生。
He/She is a student. 他/她是学生。
We/They are students. 我们/他们是学生。
You are my teacher. 你是我的老师。
注意:以上we和they是复数,所以students要用复数形式。
以上几个例句都是be动词的一般现在时的肯定句,如要表达否定可以直接在be动词后面加not.如:I'm not a student. 我不是学生。
He/She isn't a student. 他/她不是学生。
We/They aren't students. 我们/他们不是学生。
You aren't my teacher. 你不是我的老师。
如果我们要提问:你是个学生吗?该怎么表达。
可以直接将以上例句中的be动词提前变形为一般凝问句,如:Are you a student? 你是一个学生吗?Is he/she a student? 他/她是一个学生吗?Are they studnet? 他们是学生吗?Are you his teacher? 你是他的老师吗?注意:一般浓缩题不会向自己或我们提问,因为我们自己知道答案。
be动词一般现在时的一般凝问句的回答,做肯定回答用“Yes,主语+be动词...”,否定回答用“No,主语+be动词+not...”,即"Yes/No,一般现在时的肯定句/否定句",但做回答时一般省略be动词后面的成分。
实义动词的一般现在时
一个动作经常反复地发生,就用一般现在时。
第三人称单数(he, she , it, Tom等)作主语,谓语动词要加″s″ 或″es″,但当句中出现does,doesn’t要用原型,
一人称、二人称、三人称复数用原型。
如:They get up at six o’clock.
He goes to school at seven- thirty .
附:动词第三人称单数的构成规则
1)一般情况下加s get—gets like---likes
2)以s, x, ch, sh, o结尾的加es: watch---watches go---goes do---does
3)以辅音字母加y结尾的,改y为i,加es study---studies
特殊:have---has
一、用所给词的适当形式填空:
1.I _________ (know) the boy. He doesn’t (know) me.
2.They __________(go) to work on Saturdays.
3.He usually _____________(come) to school early.
4.I often _____________(have) rice, meat and vegetables.
5.My grandfather _____________(play) sports in the park.
6.Miss Li ____________(teach) English in our school.
7.The students of Class Four ___________(sing) a song on Monday.
8.Alicia and Jerry ______________ (do) homework after school.
9.We _____________(take) a shower in the evening.
10.Her sister ____________(have) Chinese every day.
11.My sister (like) salad a lot, but I (like) broccoli.
12.Tom (go) to the store on weekends.
13.Linda and I (play) sports after school.
14.He (speak) English very well.
二、把下列句子变成否定句;
1.She likes salad for breakfast.
2.They want to help you.
3. My friend gets up at five o’clock
4 We go to school in the morning.
5.Mr Green sings in the music room.
6.They need oranges.
7.She likes to play volleyball.
8.We have some sports clubs at our school.
9.We do sports after school.
10.My sister does her homework in the evening.
三、变一般疑问句,作肯定和否定回答
1.She likes bananas.
2.The boys play soccer after class.
3.We listensto music every day.
4.My father speaks English.
5.His sister watches TVin the evening.
四、对划线部分提问
1.I get up at seven in the morning.
2.She likes vegetables.
3.Tom often plays basketball on Saturday.。