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 . 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,是要干的事; instead of 后接单词或短语,是没干的事; 例: 1. She decided to leave here on Sunday instead of Monday. 2. We have no coffee. Would you like tea instead ? 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) 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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