什么是词组什么是句型,句型和句子是一个意思嘛

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什么是词组什么是句型,句型和句子是一个意思嘛(1)

记录典型问题 分享教学方法

导语:关于介词;连词及副词的问答时间

(S: 学生 T: 老师)

问题一:

S: 老师,for example 和such as如何区分?它们都属于介词短语吗?

T: 共同点:

1.作为习语,二者都可定性为介词短语;

2.都译为“比如;举例;譬如”

3.后都可接句子或短语或单词。

不同点:

1.for example 后接句子时,通常加逗号;

2.for example 位置灵活,句首句中句尾皆可;

3.for example后一般加一个例子;

(说一般说明偶尔有例外)

4.such as有时可分开使用,即such 名词 as;

5.such as 后列举二个以上例子,但无需全部罗列,与like可互换使用。

例:

1. Football, for example,is very popular .

2. Wear something simple; for example, a skirt and blouse.

3. When I am tired, such as when I’m working on the computer,I turn to bread .

4. I visited many countries,such as Japan, Canada,Australia.

5. I visited such countries as Japan, Canada.

S:二者有共同点,是否可以互换使用?

T:比如例句3中的such as 可换为for example,但要加逗号:

When I am tired, for example, when I’m

working on the computer,I turn to bread .

什么是词组什么是句型,句型和句子是一个意思嘛(2)

问题二:

S: instead和instead of 怎么区分?

T: 不同点:

1. 词性不同:

instead是副词;instead of 是介词短语;

2. Instead后接句子,是要*事;

instead of 后接单词或短语,是没*事;

例:

1. She decided to leave here on Sunday

instead of Monday.

2. We have no coffee.

Would you like tea instead ?

什么是词组什么是句型,句型和句子是一个意思嘛(3)

问题三:

S: because 和because of 怎么区分?

T:词性不同:

because是连词,后接句子;

(所谓连词—成句)

because of 是介词短语,后接单词或短语;

(所谓介词—短语)

例:He didn’t know, because he was absent.

He didn’t know, because of his being absent.

He didn’t know, because of his absence.

S: 怎么分辨是句子还是短语呢?

T: 1. 谓语动词是一个句子存在的前提,或者说就那五大简单句;而短语包括名词短语、动词短语、介词短语、动词不定式短语、动名词短语、分词短语、形容词短语等;

2.短语有时并不短,短语里含有句子,依然叫短语。比如:

the boy who is sitting there (名词短语)

to do what you like (动词不定式短语)

Knowing who you are and what you are

interested in (动名词短语)

什么是词组什么是句型,句型和句子是一个意思嘛(4)

S: than是连词还是介词?后面跟句子还是短语?

T: than 既是连词也是介词,作为连词,后跟句子;作为介词,后跟单词或短语。

例:She is a better player than last year.

She is a better player than she was last year.

总结:常见的既是介词又是连词的单词:

1.than: prep./conj.比;较

2. after: prep./conj.在......之后

3. before : prep./conj.在......之前

4. till/until: prep./conj.直到......

5. since:prep.自从;conj.自从;既然

6. as:prep.作为;

conj. 尽管;由于; 当...时

7. for:conj.由于;prep. 为了

8. but :prep. 除了;conj. 但是

再强调:

作为连词,后跟句子;

作为介词,后跟单词或短语。

本节课教与学心得体会:

词性是单词教学的重中之重,再怎么强调都不为过;切不可将词性作为模糊的存在,搞清词性,学习也会变得自信!

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