副詞在句中可作狀語，表語，補(bǔ)語，定語。

He works hard. （作狀語）
　　他工作努力。

You speak English very well. （作狀語）
　　你英語講得相當(dāng)好。

Does she stay home? （作表語）
　　她呆在家嗎?

[she stay home是主系表結(jié)構(gòu)，stay 此處是[linking verb 連系動詞]， home 是[adv.]，作stay的表語]

[PS: 至于she stays at home...此處stay是實(shí)義動詞，整個句子是主謂結(jié)構(gòu)，at home是介詞短語做地點(diǎn)狀語]

Let's be out. （作表語）
　　讓我們出去吧。

Food here is hard to get. （here作定語，hard作狀語）
　　這兒很難弄到食物。

Let him out!（作補(bǔ)語）
　　讓他出去！

.修飾名詞的副詞放在被修飾詞之后

a. The villagers there are busy getting in wheat.

位置

1) be動詞、助動詞或情態(tài)動詞之后，實(shí)義動詞之前。 如果實(shí)義動詞后有賓語，則放于賓語之后。

I am also Bush.
　　我也是布什。

I can also do that.
　　我也可以這樣做。

I also want to play that games.
　　我也想玩這游戲。

I get up early in the morning every day.
　　每一天的早晨我都起得很早。

She didn't drink water enough.
　　她沒有喝足夠的水 。

We can go to this school freely.
　　我們可以免費(fèi)到這家學(xué)校學(xué)習(xí)。

They left a life hardly then.
　　當(dāng)時他們的生活很艱難。

I have seen this film twice with my friends.
　　這部電影我和朋友看過兩次。

2) 副詞修飾形容詞，副詞時，一般放在被修飾詞之前，但enough除外。

It's rather easy， I can do it.
　　這很容易，我能做到。

He did it quite well.
　　他做得相當(dāng)好。

3) 頻度副詞可放在實(shí)義動詞的前面，情態(tài)動詞和助動詞的后面。

I often help him these days.
　　這些日子我經(jīng)常幫助他。

I always remember the day when I first came to this school.
　　我常常記得我第一次來學(xué)校的那一天。

You mustn't always help me.
　　你不能老是幫助我。

We usually go shopping once a week.
　　我們通常一周買一次東西。

The new students don't always go to dance.
　　新學(xué)生并不時常去跳舞。