【第一篇：一般現(xiàn)在時的功能】
1.表示事物或人物的特征、狀態(tài)。如：The sky is blue.天空是藍色的。
2.表示經(jīng)常性或習慣性的動作。如：I get up at six every day.我每天六點起床。
3.表示客觀現(xiàn)實。如：The earth goes around the sun.地球繞著太陽轉(zhuǎn)。
一般現(xiàn)在時的構(gòu)成：1. be動詞：主語+be(am, is, are)+其它。如：I am a boy.我是一個男孩。
注意：（我用am，你用are，三單is，復(fù)數(shù)are。）
行為動詞：
主語+行為動詞(+其它)
如：We study English.我們學習英語。
注意：（當主語為第三人稱單數(shù)(he, she,it)時，要在動詞后加"-s"或"-es"。如：Mary likes Chinese.瑪麗喜歡漢語。）
一般現(xiàn)在時的變化：
1. be動詞的變化。
肯定句：主語+be+其它
He is a worker. 他是工人。
否定句：主語+ be + not +其它。
He is not a worker.他不是工人。
一般疑問句：Be +主語+其它。
(be動詞移到句首)
如：I am a student.
-Are you a student?
-Yes. I am. / No, I'm not.
特殊疑問句：疑問詞+一般疑問句。
如：My bike is under the tree.
Is your bike under the tree?
Where is your bike?
2.行為動詞的變化
肯定句：主語+動詞原形(+其它)。
否定句：主語+ don't( doesn't ) +動詞原形(+其它)。
如：I like bread. I don't like bread.
當主語為第三人稱單數(shù)時，要用doesn't構(gòu)成否定句。
如：He ofter plays football.
He doesn't often play football.
一般疑問句：Do( Does ) +主語+動詞原形+其它。（句首加助動詞do, does）
如：I often play football.
- Do you often play football?
- Yes, I do. / No, I don't.
當主語為第三人稱單數(shù)時，要用does構(gòu)成一般疑問句
如：She goes to school by bike.
- Does she go to school by bike?
- Yes, she does. / No, she doesn't.
特殊疑問句：疑問詞+一般疑問句。
如：She goes to school by bike.
Does she go to school by bike?
How does she go to school?
動詞+s的變化規(guī)則
1．一般情況下，直接加-s，如：cook-cooks, milk-milks
2．以s. x. sh. ch. o結(jié)尾，加-es，如：guess-guesses, wash-washes, watch-watches, go-goes
3．以“輔音字母+y”結(jié)尾，變y為i, 再加-es，如：study-studies
【第二篇：現(xiàn)在進行時】
1．現(xiàn)在進行時表示現(xiàn)在正在進行或發(fā)生的動作，也可表示當前一段時間內(nèi)的活動或現(xiàn)階段正在進行的動作。（句中一般含有now, look, listen.）
2．現(xiàn)在進行時的肯定句基本結(jié)構(gòu)為be+動詞ing.
如：Tom is reading books in his study .
3．現(xiàn)在進行時的否定句在be后加not。
如：Tom is reading books in his study .
Tom is not reading books in his study .
4．現(xiàn)在進行時的一般疑問句把be動詞調(diào)到句首。
如：Tom is reading books in his study .
Is Tom reading books in his study ？
5．現(xiàn)在進行時的特殊疑問的基本結(jié)構(gòu)為：疑問詞+一般疑問句?
�。ㄗ⒁猓寒攧澗�部分包含謂語動詞時，用疑問詞代替劃線部分放到句首，原劃線處應(yīng)加上doing）
如：Tom is reading books in his study .
Tom is reading books in his study .
Is Tom reading books in his study ?
Is Tom reading books in his study ?
What is Tom doing in his study?
Where is Tom reading books?
【第三篇：動詞加ing的變化規(guī)則】
1．一般情況下，直接加ing，如：cook-cooking
2．以不發(fā)音的e結(jié)尾，去e加ing，如：make-making, taste-tasting
3．如果末尾是輔音字母加一個元音字母和一個輔音字母，雙寫末尾的輔音字母，再加ing，如：run-running, stop-stopping
