主語
主語表明這句話說的是誰和什么，主語主要由名詞、代詞或相當于名詞的單詞，短語或從句充當。
一、名詞作主語
David arrived last night.
大衛昨晚到達。
Pride goes before a fall.
驕必敗。
二、代詞作主語
Who is speaking, please?
（在電話中）請問您是誰？
That's OK.
這沒問題。
三、數詞作主語
Two will be enough.
兩個就夠了。
Two-thirds of the workers are women.
三分之二的工人是女工。
四、ing形式作主語
Skating is a good exercise.
溜冰是很好的運動。
Looking up all the new words in the dictionary took him a lot of time.
從字典里查所有的生詞花費了他許多時間。
五、不定式作主語
To translate this ideal into reality needs hard work.
把理想轉變成現實需要辛勤的勞動。
六、名詞化的形容詞作主語
The blind and the lame are well cared for in our country.
在我們國家，盲人和肢殘人受到很好的照顧。
The unemployed usually lead a hard life.
失業的人生活一般很困難。
七、短語作主語
How to do well is an important question.
如何把這件事做好是一個重要問題。
Early to bed and early to rise makes a man healthy.
早睡早起身體好。
八、從句作主語
What has happened proves that our policy is right.
發生的一切證明我們的政策是對的。
Whether we'll go depends on the weather.
我們是否去要看天氣。
