動(dòng)詞不定式符號(hào) to 在以下場(chǎng)合常被省略。
1. 在 see 、 hear 、 watch 、 notice 等感官動(dòng)詞和 have 、 make 、 let 等使役動(dòng)詞后面作賓語(yǔ)補(bǔ)足語(yǔ)的動(dòng)詞不定式要省略 to .
例如: We often hear her sing in the next room .
What makes you think so ?
注:上述情況僅適用于主動(dòng)語(yǔ)態(tài),在被動(dòng)語(yǔ)態(tài)中,作主語(yǔ)補(bǔ)足語(yǔ)的動(dòng)詞不定式不能省略 to .
例如: They were heard to sing the song .
2. 短語(yǔ)動(dòng)詞 look at 和 listen to .
例如: He often looks at other people play football .
The children often listen to their teacher tell stories .
3. 在動(dòng)詞 help 后面作賓語(yǔ)或賓語(yǔ)補(bǔ)足語(yǔ)的動(dòng)詞不定式可以帶 to ,也可以省略 to .
例如: Drinking more water can help you ( to ) get rid of your cold .
但是,如果主語(yǔ)不直接參加 help 后面的動(dòng)詞不定式所表示的動(dòng)作,則動(dòng)詞不定式符號(hào) to 不能省略。例如:
The trip helped me to see much of the world .
I think a walk will help you to eat more .
4. 當(dāng)兩個(gè)或兩個(gè)以上的作用相同的動(dòng)詞不定式并列使用時(shí),第一個(gè)動(dòng)詞不定式應(yīng)帶 to ,而第二個(gè)及以后的動(dòng)詞不定式可以省略 to .例如:
I want to call on my teacher and ask him some questions .
注:當(dāng)兩個(gè)動(dòng)詞不定式為選擇關(guān)系時(shí),都不能省略 to .例如:
I haven 抰 decided to go home or to stay at school this summer .
1. 在 see 、 hear 、 watch 、 notice 等感官動(dòng)詞和 have 、 make 、 let 等使役動(dòng)詞后面作賓語(yǔ)補(bǔ)足語(yǔ)的動(dòng)詞不定式要省略 to .
例如: We often hear her sing in the next room .
What makes you think so ?
注:上述情況僅適用于主動(dòng)語(yǔ)態(tài),在被動(dòng)語(yǔ)態(tài)中,作主語(yǔ)補(bǔ)足語(yǔ)的動(dòng)詞不定式不能省略 to .
例如: They were heard to sing the song .
2. 短語(yǔ)動(dòng)詞 look at 和 listen to .
例如: He often looks at other people play football .
The children often listen to their teacher tell stories .
3. 在動(dòng)詞 help 后面作賓語(yǔ)或賓語(yǔ)補(bǔ)足語(yǔ)的動(dòng)詞不定式可以帶 to ,也可以省略 to .
例如: Drinking more water can help you ( to ) get rid of your cold .
但是,如果主語(yǔ)不直接參加 help 后面的動(dòng)詞不定式所表示的動(dòng)作,則動(dòng)詞不定式符號(hào) to 不能省略。例如:
The trip helped me to see much of the world .
I think a walk will help you to eat more .
4. 當(dāng)兩個(gè)或兩個(gè)以上的作用相同的動(dòng)詞不定式并列使用時(shí),第一個(gè)動(dòng)詞不定式應(yīng)帶 to ,而第二個(gè)及以后的動(dòng)詞不定式可以省略 to .例如:
I want to call on my teacher and ask him some questions .
注:當(dāng)兩個(gè)動(dòng)詞不定式為選擇關(guān)系時(shí),都不能省略 to .例如:
I haven 抰 decided to go home or to stay at school this summer .