1、It is + adj. + for sb. to do sth.
例句：It is important for students to study hard.
2、Doing sth. is + adj.
例句：Doing sports is helpful.
3、Sb. can’t do sth. without+ doing sth.
例句：You can't make progress without making any effort.
4、It is + adj. (for sb.) to do sth.
例句：It is necessary for us to protect the environment.
5、Sb. should+ do sth.
例句：We should take actions to reduce pollution.
6、What's + adj. + about sth.
例句：What's interesting about this book?
7、If+ 主语 + do、did、were to do等，主句
例句：If I were to help him, he would be very grateful.
8、It takes sb. some time to do sth.
例句：It takes me four hours to finish my homework every day.
9、It's +adj. + of sb. to do sth.
例句：It's kind of you to help me with my English.
10、Sb. be +adj. + to do sth.
例句：He is too young to go to school by himself.
11、Sb. would rather do sth. than do sth.
例句：I would rather stay at home and read a book than go out with friends.
12、Sb. can't help + doing sth.
例句：I can't help feeling excited when I think of the coming holiday.
13、Sb. do sth. as soon as/after/while/before/when +clause
例句：I will do my homework as soon as I get home.
14、Sb. can't stand + doing sth.
例句：I can't stand eating the same food every day.
15、It is +adj. + of sb. + to do
例句：It is important of us to protect the environment.
1.There be句型：
There be+主语+地点状语/时间状语 There'saboyinthesky. 河里有条船。
There are manybirds. 有很多鸟。
主语+be+情态动词+for+一段时间+before句型：
I'llgobackfortheparehouseinafewdays. 我几天后回家去取。
主语+have+宾语+been+动词+to+语句：
Ihavebeenlievinghereforalongtime. 我在这里住了很长时间了。
情态动词+should+动词原形：
Should+be+动词原形 Weshouldgobackhomeshouldday. 我们应该回家应该今天。
主语+be going to+动词原形：
I'mtakingastourforthemorrow. 我正在去医院的路上。
主语+be+不定式+to do sth：
I'mgonnatakesomethingformybike. 我要去修我的自行车。
疑问句：
Whatisthemachine? 什么机器？
Whereisthisbike? 这辆自行车在哪里？
Isthisbook/pen/keys inhere? 这本书/笔/钥匙在这里吗？
祈使句：
Please...... 请……
Don'tyourself...... 不要伤害自己……
一般现在时：
Whattimeistheseay? 什么时候上课？
Whenisthehighschool? 什么时候上学？
Isthisday/week/year/month/year/term/school/holiday/festival/day/hour/minute...... 今天/周/月/年/学期/节日/天/小时/分钟……是几点……？
一般过去时：
Whattimeisthisdaybefore? 前一天几点上学？
Whenistheightstudent? 谁是最高年级学生？
现在进行时：
Whatisthisdoing? 他在干什么？
Whatisthisproducing? 他在介绍什么？
一般将来时：
Whatistheightstudent? 谁是最高年级学生？
Whatisthisplan? 他有什么计划？
现在完成时：
Whenisthiswriting? 写这篇文章是什么时候？
Whatisthisfinished? 什么时候完成的？
过去完成时：
Whatisthisdoingtwodaysago? 两天前他在干什么？
Whatisthiscompletion? 他的作业是什么？
动词不定式to do：
Whatisthemachine? 什么机器？
Whereisthisbike? 这辆自行车在哪里？
Isthisbook/pen/keys inhere? 这本书/笔/钥匙在这里吗？
介词+不定式to do：
Whatisthisproducing? 他在介绍什么？
Isthisthebook/pen/keys? 这是这本书/笔/钥匙吗？
状语从句：
Whenisthisbirthday? 他的生日是什么时候？
Whereisthisfather/mother/grandfather? 他的父亲/母亲/祖父在哪里？
Whoisthisfriend? 他的朋友是谁？