英语选择 while用法_____ some Chinese scholars propose stopping using traditional Chinese medicine,foreign medical institutions and industries are pursuing them.A if B while C as D once
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/28 04:37:57
英语选择 while用法_____ some Chinese scholars propose stopping using traditional Chinese medicine,foreign medical institutions and industries are pursuing them.A if B while C as D once
英语选择 while用法
_____ some Chinese scholars propose stopping using traditional Chinese medicine,foreign medical institutions and industries are pursuing them.
A if B while C as D once
英语选择 while用法_____ some Chinese scholars propose stopping using traditional Chinese medicine,foreign medical institutions and industries are pursuing them.A if B while C as D once
选B while 当中国学者呼吁停止使用中药的时候,外国医学机构却在追求中药.
While的用法如下
一、while作名词用,表示“一会儿”“一段时间”
1.She likes to lie down for a while after lunch.
她喜欢午饭后躺一会儿.
2.Coming to another country to study requires a big adjustment and it takes a while to fit in.
来到另一个国家求学,需要花一段时间来适应.
二、While作连词(1)引导时间状语
1.We must strike while the iron is hot.趁热打铁.
2.While she was listening to the radio,she fell asleep.
她听着收音机睡着了.
(2)引起让步状语从句,意思是“虽然…但是….”、“尽管…但是…”(多放于句首)1.While he loves his students,he is very strict with them..
虽然他爱他的学生,可是他对他们很严格.
2.While these experiments are interesting and useful,it is important to remember that they may not always tell us much.(BookIIIp125)
虽然这些实验很有趣也有用,但是很重要的是要记住,这些实验也可能不会告诉你很多.
(3)引起条件状语,意思是“只要”
1.While there is life there is hope.只要生命存在,就有希望.
2.While there is a way there is away.有志者事竟成.
三、While作并列连词用,意思为“而,然而”,表对比.而but表转折.注意用心比较体会while与but的句中用意
选Bwhile 当中国学者呼吁停止使用重要的时候,外国医学机构却在追求中药。 while在这里有当....的时候的意思 放在句子中有转折的效果