對某人來說做某事怎麼樣，
如：
It is dangerous for children to play in the street. 孩子們在街上玩是很危險的。
2. It's time for sth. 是幹某事的時間了；
It's time(for sb.)to do sth.該幹某事了。如：
It's time for the meeting. 該開會了。
It's time for us to go to school. 我們該上學了。
3. It takes sb. some time to do sth.
做某事花某人一些時間。
sb. spend some time/money on sth./(in)doing sth. 某人花時間(金錢)在某事上/花時間(金錢)幹某事。
sth. cost sb. some money 某事花某人一些錢。
pay some money for sth.為某事(物)付錢。如：
It took me two hours to write the letter. 寫這封信花了我兩小時的時間。
He spends half an hour(in)reading English every morning.他每天早上花半小時讀英語。
He spends one hour on the housework every day. 他每天花一小時做家務。
The bike cost me 500 yuan. 這輛腳踏車花了我500元。
I spent 500 yuan on the bike. 我買這輛腳踏車花了500元。
I paid 500 yuan for the bike. 我花了500元買這輛腳踏車。
重要提示：
cost主語一般為物；spend, pay主語一般為人。例 中it用作形式主語，動詞不定式為真正主語。
4. too+形容詞/副詞+to do... 太……以致不能…… 如：
I was too excited to say a word.
我激動得一個字也說不出來。
Tom is too short to reach the apple.
Tom太矮了,拿不到那個蘋果。
重要提示：
這是一個否定句型，不能在不定式前加not，可以用so... that...結構改寫。例句 可以改寫成：I was so excited that I couldn’t say a word.
5. so that...以便/以致…… 如：
They studied hard so that they could pass the exam. 為了能透過考試,他們學習很努力。
They started early so that they caught the early bus. 他們起得很早,結果趕上了早班車。
重要提示：
在例句中，是引導目的狀語;在例句中，是引導結果狀語。一般來講，若從句中含有情態動詞，則so that引導的為目的狀語。若無情態動詞，則so that引導的為結果狀語。
6. 祈使句+then/or/and+陳述句 如：
Work hard,and/then/and then you will live a happy life. 努力工作，你就會過上幸福的生活。
Hurry up,or we will be late for school. 快點，否則我們上學就遲到了。
注意：以上句型都可以用條件狀語從句來改寫。例句可以改寫成：If we don't hurry up, we'll be late for school.
7. 表達建議的句型，如：
Why not do...? 為什麼不……?
Let's do... 讓我們做……吧。
Shall we do...?我們做……好嗎?
Would you like/to do...?
你想要(做)……嗎?
Will you please do...?
請你做……好嗎?
What(How)about doing...?
做……怎麼樣?
had better do/not do sth.
最好做/不做某事。如:
—Why not go and ask our teacher? ——為什麼不去問問老師?
—Good idea! Let's go. ——好主意!走吧!
—Shall we go out for a walk? ——我們去散步怎麼樣?
—No,Let's go to the zoo. ——不,我們去動物園吧。
Will you please fetch some chalks for me?請你給我拿些粉筆,好嗎?
—What about singing an English song? ——唱首英文歌曲怎麼樣?
—Wonderful! ——好極了!
You had better put on the coat when you go out.你出去時最好把外套穿上。
8. I don't think his answer is right.
我認為他的答案不對。
I can't believe she is right.我相信她是不對的。
You don't think they will come tomorrow,do you?你認為他們明天不會來,是嗎?
重要提醒：
think,believe,suppose等接賓語從句，表示否定時要否定主句。變為反意疑問句時，若主語是第一人稱，簡短問句與賓語從句的主謂語保持一致，若主句主語是其他人稱，與主句主謂語保持一致。例句變為反意疑問句應為：I can't believe she is right,is she?
9. such+名詞性片語+that...；so+形容詞/副詞+that... 如此……以致……
如：
She is such a good teacher that we all love her.她是一個好老師,我們都愛她。
It was such a hot day that they didn't go out for a walk as usual.這麼熱的天氣,他們沒有像往常一樣去散步。
重要提醒：
(1)“such+a(an)+形容詞+名詞+that...”，可以改寫成“so+形容詞+a(an)+名詞+that...”，例句可以改寫成：She is so good a teacher that we all love her.
(2)在“such+形容詞+名詞複數或不可數名詞+that...”結構中，形容詞如果是many/few或much/little時，用so不用such，即：so+many/few+可數名詞複數+that... ，so+much/little+不可數名詞+that...。如：
There are so many people in the room that I can't get in.
房間裡人太多,我進不去。
The man has so much money that he can buy a car.
那人很有錢,他能買一輛小汽車。
10. there be...;either... or...;neither... nor...;not only... but also...
如：
There is a pen and two pencils in his pencil-box. 他的鉛筆盒裡有一支鋼筆和兩支鉛筆。
Not only you but also I want to go travelling. 不但你，我也想去旅遊。
Either you or I am leaving for Shanghai. 要麼你去上海，要麼我去上海。
Neither you nor he is right. 你和他都不對。
Both Jack and Tim are English. Jack和Tim都是英國人。
重要提示：
當這幾個句型連線主語時，謂語動詞的人稱和數要遵循“就近原則”。對比both... and...來記憶，both... and...連線主語時視為複數。
11. enough+名詞+to do... 有足夠的……做某事；
形容詞/副詞+enough+to do... 足夠……做某事。如：
There is enough room to hold these people to have a meeting. 有足夠的地方容下這些人開會。
The boy is strong enough to carry the heavy box. 這個男孩兒力氣夠大,能搬動這隻箱子。
重要提示：
enough作副詞修飾形容詞或副詞時，放在所修飾詞的後面，句子可以用so... that...句型改寫。例句可以改寫為：The boy is so strong that he can carry the heavy box.
12. enjoy doing sth.喜歡(愛好)做某事；
like to do/like doing sth.喜歡做某事。如：
Do you enjoy listening to music? 你喜歡聽音樂嗎?
I like to swim in the swimming pool. 我喜歡在游泳池中游泳。(喜歡到某一具體的地方游泳)
I like swimming. 我喜歡游泳。(只講喜歡這項運動)
