初三英语《现在完成时的用法》PPT课件

英语课件

Unit 8 Leisure, Work and Animals

Language Focus 1: 表示数量

Language Focus 2: spend 的用法 Language Focus 3: 现在完成进行时

英语课件

Language Focus 1 表示数量1. 复习已学过的一些表示发展趋势的词语。 动词：to increase, to rise, to decrease, to fall

名词：an increase, a rise, a decrease,a fall 形容词和副词：slight, slightly, steady, sharp, steadily, sharply, dramatic, dramatically

英语课件

2. 可以用来表达数量的表达方式a large/small proportion of… the majority of… a minority of… e.g 1. A large proportion of people live in big

cities.2. The majority of people like work. 3. A minority of the population owns a dog. 4. A small proportion of households have a personal computer.

英语课件

3. 另外表达数量的表达方式 over…, under…, more than…,

less than…e.g 1). Over half the dogs in the UK are pedigree. 2). Under a quarter of people can swim. 3). More than a third of cats are grey. 4). Less than 50% of the population owns a

dog.

英语课件

Language Focus 2

spend 的用法

Spend是一个动词，常用作如下结构：

spend time (in) doing somethinge.g 1.I spend most of time working. 2.Jack spends under a third of his free time doing housework. 3.Tom spends a quarter of the day sleeping. 4.His brother spends the majority of his free time watching TV.

英语课件

Language Focus 3 现在完成进行时1. 复习现在完成时的用法 现在完成时常用在强调动作的结果，并表示动作已 经结束的时候。其构成为：

have/has + done(动词的过去分词)e.g 1). I have been to Shanghai many times. 2). She’s sorted out all the books and pictures. 3). Tom has finished doing the housework.

英语课件

2. 现在完成进行时的用法 现在完成进行时常用在强调动作从过去某个时间一 直持续到现在，而且还要继续下去的时候。其构成为： 主语+ have/has +been doing e.g 1). I’ve been working here for three years.

2). She has been learning English for fiveyears. 3).He has been living here since last March. 注意：for+一段时间， since+时间点都可以用在现在 完成进行时中。

英语课件

现在完成时的否定式： 主语+have/has not + been doing

疑问式: Have/has + 主语 + been doing?特殊疑问词+have/has+主语+been doing?

e.g 1. I have not (haven’t) been workinghere for a long time.

2. Have you been working here for along time?

英语课件

3. Where has he been living? 4. Who have they been working for? 注意: 状态动词,如: love, hate, be, think, feel, hear等, 通常不用于现在完成进 行时, 而可以用于现在完成时. e.g 1). I’ve always liked animals. 2). I’ve always wanted to do something.