作者：丁楠
一、To do sth. is one's dream. 做某事是某人的梦想。
【考点说明】 句中的不定式作主语。
To be a teacher is my dream. 做老师是我的梦想。
To visit the Great Wall of China is her dream. 参观中国的长城是她的梦想。
【知识串联】 It is a / one's dream to do sth. 做某事是一个/某人的梦想，句中it为形式主语，不定式为真正主语。
It is my dream to join the party. 入党是我的梦想。
二、Doing sth. is a lot of fun. 做某事很有趣。
【考点说明】 句中doing为动名词作主语，fun为不可数名词，表乐趣。
Swimming in a river in summer is a lot of fun. 夏天在河里游泳很有趣。
Chatting with a close friend is really a lot of fun. 跟密友闲聊很有趣。
【知识串联】 make fun of sb. / sth. 嘲笑某人 / 某事物，通常含有恶意。
Don't make fun of people who make mistakes. 不要嘲笑犯错误的人。
三、What do you mean by ...? 你......是什么意思？
【考点说明】 该句型询问对方某动作或话语的意图，by后面接名词、代词或动名词。
What do you mean by that word? 你说那个字是什么意思？
What do you mean by saying like that? 你那么说是什么意思？
【知识串联】 What's your meaning by ...？你......是什么意思？
What's your meaning by smiling? 你微笑是什么意思？
What's your meaning by shaking your head? 你摇头是什么意思？
四、go from ... to ... doing sth. 从......到......做某事
【考点说明】 句中from与to后面均应接地点，doing sth.为现在分词作伴随状语。
Don't go from place to place doing nothing. 别从一个地方走到另一个地方，什么事都不做。
He went from door to door asking about this matter. 他挨家挨户打听这件事。
【知识串联】 go from one ... to another / the other...doing sth.从......到......做某事，one与another / the other后面均接地点名词。
He went from one shop to another/the other looking for this kind of bikes. 他挨家商店寻找这种自行车。
五、be based on根据......；以......为依据
【考点说明】 该短语中on是介词，后接名词、代词或动名词。
His short story is based on a real person. 他的短篇小说以真人为原形。
His invention was based on his dreams. 他的发明根源于他的梦想。
【知识串联】 base on根据......，以......为基地
Prices usually base on public's demand.物价的波动常以大众的要求为根据。
The troops based on that island.部队曾以那个岛为基地。
六、can't wait to do sth. 迫不及待地做某事
【考点说明】句中to do sth.为不定式短语作原因状语。
I can't wait to learn the result of the exam.我迫不及待地想了解考试结果。
I can't wait to see her. 我急于去看她。
【知识串联】 be eager to do sth.渴望做某事
She is eager to join the party.她渴望入党。