【篇一】
主语是动作的发出者为主动语态：主语是动作的接受者为被动语态。
1) 若宾语补足语是不带to 的不定式，变为被动语态 时，该不定式前要加"to"。此类动词为感官动词。
feel, hear, help, listen to, look at, make, observe, see, notice, watch
The teacher made me go out of the classroom。
--> I was made to go out of the classroom (by the teacher)。
We saw him play football on the playground。
--> He was seen to play football on the playground。
2) 情态动词+ be +过去分词，构成被动语态。
Coal can be used to produce electricity for agriculture and industry。
【篇二】
(2) 肯定和否定句 I am(not) from London.
My eyes are(not) small.
My hair is(not) long.
(3)一般疑问句： Am I a Chniese? Yes, you are. No, you aren't.
Are they American? Yes, they are. No, they aren't.
Is the cat fat? Yes, it is. No, it isn't.
【篇三】
David arrived last night.
大卫昨晚到达。
Pride goes before a fall.
骄必败。
二、代词作主语
Who is speaking, please?
(在电话中)请问您是谁?
That's OK.
这没问题。
三、数词作主语
Two will be enough.
两个就够了。
Two-thirds of the workers are women.
三分之二的工人是女工。
四、ing形式作主语
Skating is good exercise.
熘冰是很好的运动。
Looking up all the new words in the dictionary took him a lot of time.
从字典里查所有的生词花费了他许多时间。
五、不定式作主语
To translate this ideal into reality needs hard work.
把理想转变成现实需要辛勤的劳动。
六、名词化的形容词作主语
The blind and the lame are well cared for in our country.
在我们国家，盲人和肢残人受到很好的照顾。
The unemployed usually lead a hard life.
失业的人生活一般很困难。
七、短语作主语
How to do well is an important question.
如何把这件事做好是一个重要问题。
Early to bed and early to rise makes a man healthy.
早睡早起身体好。
八、从句作主语
What has happened proves that our policy is right.
发生的一切证明我们的政策是对的。
Whether we'll go depends on the weather.
我们是否去要看天气。
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