文档介绍:九年级英语Unit3知识点---topic 1
九年级英语Unit3知识点
语法: 被动语态
①英语有两种语态:主动语态和补动语态
主动语态表示主语是动作的执行者 ,被动语态表示主语是动作的承受者
Cats eat fish. (主动语态)猫吃鱼。
Fish is eaten by cats. (被动语态)鱼被猫吃。
②被动语态的构成: “助动词be+及物动词的过去分词”
助动词be有人称、数和时态的变化,其变化规则与be 作为连系动词时完全一样。
时态
被动语态结构
例句
一般现在时
am
are +过去分词
is
English is spoken in many countries.
一般过去时
was +过去分词
were + 过去分词
This bridge was built in 1989.
情 态
动 词
can/should
may +be+过去分词
must/……
The work must be done right now.
※动作的执行者由by引入的短语表示
当我们不知道谁是动作的执行者,或者没有必要指出谁是动作的执行者,后面的by短语可以不用。
Topic 1
1. stick①v. 粘贴, 坚持 Stick the map on the 墙上。
stick to sth. 坚持 、信守(真理等) Stick to your decision 坚持你自己的决定
stick to doing sth 坚持做某事, He sticks to speaking English every day. 他坚持每天说英语。
stick② n. 棍、棒, 手仗 walking stick手仗, 拐杖
2. be able to能够, 会 后接动词原形, 相当于情态动词can。
be able to能用于所有时态。can只有一般现在时和一般过去时(could)。
’ll be able to speak English well 能说好英语。
3. can’t wait to do 迫不及待做…… e g. I can’t wait to try the shirt. 我迫不急待地想试一下这件衬衫。
4. have a (good) chance to do…有(好)机会做……
have no chance to do 没有机会做……
has a good chance to visit the Summer Palace. 他有很好的机会去参观故宫。
5. throughout prep. 遍及; 贯穿 throughout the world全世界= all over the world= around the world
6. try/ do one’s best to do…尽全力做……
try to do sth. 设法、努力做某事 eg. He tried to work out the problem. 他设法解决那个问题。
try doing sth. 试着做某事 eg. I tried knocking the door. 我试着敲门。
7. communication n. 传播, 交际----communicate v. 交流、沟通
communicate with sb. 同某人交流、沟通
Eg. Bees use dances municate with each other. 蜜蜂用跳舞相互沟通。
8. be pleased with = be satisfied with 满意 eg. She is pleased/ satisfied with her son’s painting.
9. pack one’s bag 整理行李
10. on business 出差 busy v. -----business n. Eg. He is away on business. 他出差去了。
11. be similar to 和……相似 be the same as 与……一样 be different from 与……不同
12. It’s possible/ impossible(for sb.) to do sth. 对某人来说做某事