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1、词词 汇汇 点点 睛睛句句 型型 透透 视视Unit 2 She was thinking about her cat. & Unit 31twice adv. 两次；两倍两次；两倍 词 汇 点 睛 观察观察 Once or twice she looked into her sisters book. 她偶她偶尔看一眼她姐姐的书。尔看一眼她姐姐的书。Please take the medicine twice a day.请每天吃两次药。请每天吃两次药。 拓展拓展 (1)once表示表示“一次一次”， 三次或三次以上一般用三次或三次以上一般用“基基数词数词times(次次)”来表示。如：来表
2、示。如：five times 五次，五次，ten times 十次。十次。“每月一次每月一次”表示为表示为“once a month”，中间，中间不用介词不用介词in。“一天三次一天三次”表示为表示为“three times a day”。They go shopping once a week.他们每周购物一次。他们每周购物一次。(2) 对含有对含有twice, once, sometimes, seldom, usually, never等的频度副词提问时用等的频度副词提问时用how often。How often do you play computer games?你多久玩一次电脑游戏
3、？你多久玩一次电脑游戏？Twice a week. 一周两次。一周两次。Unit 2 She was thinking about her cat. & Unit 3Unit 2 She was thinking about her cat. & Unit 3搭配搭配 Unit 2 She was thinking about her cat. & Unit 3AUnit 2 She was thinking about her cat. & Unit 3oncetwice2suddenlyadv. 突然地；出乎意料地突然地；出乎意料地 观察观察 Suddenly a white rabbit
4、 with pink eyes ran by. 突然突然一只粉红眼睛的白兔跑过。一只粉红眼睛的白兔跑过。Suddenly I heard someone crying.突然，我听见有人在哭。突然，我听见有人在哭。 探究探究 suddenly常用作状语，多位于句首。其形容词形式常用作状语，多位于句首。其形容词形式为为sudden，意为，意为“突然的，意想不到的突然的，意想不到的”。Unit 2 She was thinking about her cat. & Unit 3Unit 2 She was thinking about her cat. & Unit 3Suddenlysudden3
5、think about 考虑考虑观察观察But she never thought about how she was going to get out again.但她从未想过将要怎样再出来。但她从未想过将要怎样再出来。She is thinking about going to Beijing for a holiday. 她正在她正在考虑去北京度假。考虑去北京度假。探究探究 think about后面可接名词、代词或动词后面可接名词、代词或动词ing形式，也形式，也可以接宾语从句。该短语作可以接宾语从句。该短语作“考虑考虑”讲时，可以和讲时，可以和think of互换。互换。Unit 2
6、 She was thinking about her cat. & Unit 3Unit 2 She was thinking about her cat. & Unit 3thinking about/ofmoving1 Alice had nothing to do. 爱丽丝无事可做。爱丽丝无事可做。探究探究 have nothing to do 意为意为“无事可做无事可做”。拓展拓展 have nothing to do with 意为意为“与与无关；与无关；与毫不相干毫不相干”。He had nothing to do with this accident.他与这次事故完全无关。他与
7、这次事故完全无关。 句句 型型 透透 视视Unit 2 She was thinking about her cat. & Unit 3Unit 2 She was thinking about her cat. & Unit 3has nothing to do with2And what is a book for 那么一本书有什么用那么一本书有什么用探探究究 在在该该句句中中，for意意为为“为为了了”，表表示示目目的的；它它和和前前面面的的疑疑问问词词what连连用用，构构成成what for，相相当当于于疑疑问问词词why。what for侧重问目的，侧重问目的，why侧重问原因。侧
8、重问原因。Unit 2 She was thinking about her cat. & Unit 3Unit 2 She was thinking about her cat. & Unit 3Whatfor3Alice got up and ran across the field after it. 爱爱丽丽丝丝站站起起来来跟着它跑过了田地。跟着它跑过了田地。探探究究 run across 意意为为“跑跑过过”，介介词词across意意为为“穿穿过过”，表表示示动动作作是是在在某某个个物物体体的的表表面面进进行行的的，常常和和表表示示“走走”之之类类的动词的动词(如如walk, run
9、, fly, jump等等)连用。连用。拓展拓展 (1) across的动词形式是的动词形式是cross，相当于，相当于go/walk across。You must be careful when you cross the street.You must be careful when you go/walk across the street.过过马马路时，你必须要小心。路时，你必须要小心。(2) through是是介介词词，也也指指“穿穿过过”，但但它它表表示示的的动动作作是是在在某某一物体的立体空间内进行的。一物体的立体空间内进行的。The ball went through the
10、 window into the room.这这个个球球穿穿过过窗户飞进屋里了。窗户飞进屋里了。Unit 2 She was thinking about her cat. & Unit 3Unit 2 She was thinking about her cat. & Unit 3acrossthroughacrosscross4It was too dark for her to see anything. 她来说太黑了，她什么也看不见。她来说太黑了，她什么也看不见。探探究究 “sb./sth.tooadj./adv.to v”表表示示“某某人人/某某物物太太而而不不能能”。此此结结构构用
11、用肯肯定定形形式式表表示示否否定定意意义义，后后面面不不定式的逻辑主语可用定式的逻辑主语可用for引出。引出。Wei Ming said English was too difficult(for him) to learn well.魏明说英语太难，他学不好。魏明说英语太难，他学不好。Unit 2 She was thinking about her cat. & Unit 3辨析辨析 tooto， sothat与与enough toUnit 2 She was thinking about her cat. & Unit 3词条词条含义含义例句例句tooto意为意为“太太而不能而不能”，
12、too后接形容词或后接形容词或副词原级，副词原级，to 后接动词原后接动词原形。形。The boy is too young to go to school. 这个男孩太小了，这个男孩太小了，不能去上学。不能去上学。sosothatthat意为意为“如此如此以以至于至于”， so，后接从句。后接从句。The boy is so young that he cant go to school.这个男孩这个男孩太小太小，他不能去上学。他不能去上学。enenough ough toto意为意为“足够足够做做”， 前接形容词前接形容词，后接动后接动词原形。词原形。 The boy isnt old enough to go to school.这个男孩年龄这个男孩年龄不够大不够大，不能去上学。不能去上学。BUnit 2 She was thinking about her cat. & Unit 3A
