题目内容
2.---How long has the country been open to international trade?---________1978,I suppose.( )
| A. | Since | B. | In | C. | From | D. | After |
分析 --国家对外开放多长时间了?
--我认为从1978年起.
解答 答案:A;
根据问句用的是疑问词how long,即"多长时间",所以回答时必须用表示时间段的短语或句子,表示动作持续了多长时间可以用for+时间段或since+时间点/一般过去时的时间状语从句;本题设空处后面的1978是时间点,所以用since引导,故选A
点评 连词在句子中主要起联系上下文的作用,他们之间的区别就是表示逻辑关系的不同,所以在解题时先要理解上下文含义,然后根据上下文逻辑关系选择合适的连词.连词的用法都比较多,语义之间还有交叉,熟记其基本应用规则,了解其区别,注意固定搭配对象,是做好此类题型的关键.
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