英语是印欧语系-日耳曼语族下的语言，由26个字母组合而成，英文字母渊源于拉丁字母，下面就是小编整理的9年级英语知识点总结，一起来看一下吧。
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 +doingsth.?
如：What/ How about going shopping?
②Why don’t you +dosth.? 如：Why don’t you go shopping?
③Why not +dosth. ? 如：Why not go shopping?
④Let’s +dosth. 如： Let’s go shopping
⑤Shall we/ I +dosth.? 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。
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,