How do you study for a test
unit 1知识要点
how to swim 怎样游泳
不定式与疑问词连用：动词不定式可以和what, which, how, where, when 等引导的疑问句连用，构成不定式短语。如：
the question is when to start. 问题是什么时候开始。
i don’t know where to go. 我不知道去哪。
系动词不能独立作谓语，要和表语一起构成谓语。常用的连系动词有：look, feel, be, become, get, turn, smell, taste, stay(保持), kept等。 连系动词除be 和become 等少数词可接名词 作表语外，一般都是接形容词。 如：
they are very happy. he became a doctor two years ago.
she felt very tired.
要点
1. by + doing 通过……方式 如：by studying with a group
by 还可以表示：“在…旁”、“靠近”、“在…期间”、“用、”“经过”、“乘车”等
如：i live by the river.
i have to go back by ten o’clock.
the thief entered the room by the window.
the student went to park by bus.
2. talk about 谈论，议论，讨论 如：the students often talk about movie after class.
学生们常常在课后讨论电影。
talk to sb. === talk with sb. 与某人说话
3. 提建议的句子：
①what/ how about +doing sth.? 如：what/ how about going shopping?
②why don’t you + do sth.? 如：why don’t you go shopping?
③why not + do sth. ? 如：why not go shopping?
④let’s + do sth. 如：let’s go shopping
⑤shall we/ i + do sth.? 如：shall we/ i go shopping?
4. a lot 许多 常用于句末 如：i eat a lot. 我吃了许多。
a lot of许多 == lots of 许多 常与名词连用 a lot of books
5. too…to 太…而不能 常用的句型 too+adj./adv. + to do sth.
如：i’m too tired to say anything. 我太累了，什么都不想说。
6. aloud, loud与loudly的用法 三个词都与"大声"或"响亮"有关。
①aloud是副词,重点在出声能让人听见,但声音不一定很大,常用在读书或说话上。通常放在动词之后。aloud没有比较级形式。
如: he read the story aloud to his son.他朗读那篇故事给他儿子听。
②loud可作形容词或副词。用作副词时,常与speak, talk, laugh等动词连用,多用于比较级,须放在动词之后。如:
she told us to speak a little louder. 她让我们说大声一点。
③loudly是副词,与loud同义,有时两者可替换使用,但往往含有令人讨厌或打扰别人的意思,可位于动词之前或之后。
