高中英语Unit3Lifeinthefuture语法课时教案新人教版必修5

高中英语Unit 3 Life in the future 语法课时教案新人教版必修5

教学内容

This is the fourth period, which will center on the grammar: using The past participle

To learn about the the past participle

To know the differences between the past participle and the present participle.

教学目标

Knowledge Ai m

To learn about the the past participle

Ability Aim

To use the past participle as the object complement freely and properly in speaking and writing.

Emotional Aims

Encourage the st udents learn more about the grammar.

Help the students to form the good habit in learning.

Encourage the students to do more exercises to consolidate their knowledge.

教

学策略

手段

At the beginning of this period, the teacher should give the students some time to go over what they learned in the last period.

Later the teacher had better present some sentences containing the past participle as the object complement on purpose by asking the students to do some exercises.

After finding them, the teacher can ask the students to analyze them and understand the function of the The past participle as the object complement in those sentences.After that the teacher should give the students clear explanations about the usage of the grammar.

After mastering the rules of the past participle as the object complement, the students should be given more exercises to consolidate what they learn.

一、过去分词作定语

1．单个的过去分词或由过去分词构成的复合形容词作定语时，通常放在被修饰词的名词前面，代词后面。

frozen food 冷冻食品

fallen leaves 落叶

well educated man 有教养的人

anyone caught 任何被捕的人

2．过去分词短语作定语时要放在名词后面。

The fish caught yesterday is/are still alive.

昨天捉来的鱼还活着。

The trees planted by the foreign visitors are growing well.

外国游客种的那些树长势良好。

3. 有些不及物动词必须和副词搭配才能作定语。

well behaved children行为端庄的孩子

newly come visitors 新来的观光客

4．表示情感的动词的过去分词。

由表示情感或心理状态的动词转化而来的过去分词作定语时，此类过去分词已经完全形容词化，常见的有：interested，frightened，scared，touched，puzzled，disappointed，moved 等。某些过去分词已变作形容词，失去了动词的性质，所以可以被副词very，too等所修饰，并可有比较等级，如：advanced，blessed，contented，learned，pleased，tired等。The United Sates is the most advanced country in the world.

5．过去分词和现在分词作定语的区别。

(1)及物动词的过去分词作定语表被动，也可表完成，其现在分词表示主动或进行。

boiled water 开水(被煮过的水)

boiling water 沸水(正在沸腾的水)

polluted water 污水(被污染的水)

freezing wind 刺骨寒风

spoken English 英语口语

a speaking bird 会说话的鸟

(2)不及物动词的过去分词作定语只有完成之意，其现在分词表进行或将来。

fallen leaves 落叶(已经落下来的树叶)

a falling tide落潮(正在退落的潮水)

a retired teacher 退休教师

a retiring teacher即将退休的教师

an expired lease 过期的租约

an expiring lease 即将到期的租约

6．过去分词、现在分词和不定式作定语的区别。

过去分词作定语有“被动”，“完成”的含义，现在分词作定语表“主动或进行”，不定式作定语表示将来。

The piano used at the concert is made in France.

音乐会上用的那架钢琴是法国制造的。

The girl playing the piano at the concert is Mary.

在音乐会上弹钢琴的那个女孩是玛丽。

The girl to play the piano at the concert is Mary.

将要在音乐会上弹钢琴的那个女孩是玛丽。

The problem to be discussed at the meeting next week is of great importance.

下个星期要在会议上讨论的那个问题非常重要。

二、过去分词作状语

过去分词作状语时，表时间、原因、条件、让步、方式、伴随情况等。

1．时间状语

Seen from the hill，the to wn looks beautiful.

从山上看时，这座城镇非常美丽。