英語(yǔ)知識(shí)點(diǎn)
行為動(dòng)詞的變化。
肯定句：主語(yǔ)+動(dòng)詞原形(+其它)。
否定句：主語(yǔ)+ don't( doesn't ) +動(dòng)詞原形(+其它)。
如：I like bread. I don't like bread.
當(dāng)主語(yǔ)為第三人稱(chēng)單數(shù)時(shí)，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(wèn)句：Do( Does ) +主語(yǔ)+動(dòng)詞原形+其它。(句首加助動(dòng)詞do, does)
如：I often play football.
- Do you often play football?
- Yes, I do. / No, I don't.
當(dāng)主語(yǔ)為第三人稱(chēng)單數(shù)時(shí)，要用does構(gòu)成一般疑問(wèn)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(wèn)句：疑問(wèn)詞+一般疑問(wèn)句。
如：She goes to school by bike.
Does she go to school by bike?
How does she go to school?
動(dòng)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
現(xiàn)在進(jìn)行時(shí)
1.現(xiàn)在進(jìn)行時(shí)表示現(xiàn)在正在進(jìn)行或發(fā)生的動(dòng)作，也可表示當(dāng)前一段時(shí)間內(nèi)的活動(dòng)或現(xiàn)階段正在進(jìn)行的動(dòng)作。(句中一般含有now, look, listen.)
2.現(xiàn)在進(jìn)行時(shí)的肯定句基本結(jié)構(gòu)為be+動(dòng)詞ing.
如：Tom is reading books in his study .
3.現(xiàn)在進(jìn)行時(shí)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(jìn)行時(shí)的一般疑問(wèn)句把be動(dòng)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(jìn)行時(shí)的特殊疑問(wèn)的基本結(jié)構(gòu)為：疑問(wèn)詞+一般疑問(wèn)句?
(注意：當(dāng)劃線部分包含謂語(yǔ)動(dòng)詞時(shí)，用疑問(wèn)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?
動(dòng)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(gè)元音字母和一個(gè)輔音字母，雙寫(xiě)末尾的輔音字母，再加ing，如：run-running, stop-stopping