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more than的意义问题

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more than... 的实际意义是 大于 还是 大于等于 ? 上次做一篇阅读理解里,说 If you buy more than two books, you can get 10% discount! 后面就有一问,买了两本书,应付多少钱,老师讲的是more than不包括这个two,但是我一直记得书上曾经写过more than = >,究竟哪个是对的? 请老师详细说明一下原因,谢谢!
more than的意义问题
解题思路: more than 的固定用法
解题过程:
If you buy more than two books, you can get 10% discount!
这句话中的more than 是表示“超过”的意思。
more than 用法如下:
● A. “More than+名词”表示“多于……”、“非但……尤其是”如:
1) Modern science is more than a large amount of information.
2) Jason is more than a lecturer; he is a writer, too.

● B. “More than+数词”含“以上”或“不止”之意,如:
3)  I have known David for more than 20 years.
4) Let's carry out the test with more than the sample copy.

● C. “More than+形容词”等于“很”或“非常”的意思,如:
5) In doing scientific experiments, one must be more than careful with the instruments.
6) I assure you I am more than glad to help you.
● D more A than B 结构。用来比较两种说法的正确程度,即前一种说法(A项)比后一种说法(B项)要正确一些,表示“与其……不如……”。在这个句型里,more 后不能用形容词或副词的比较级形式,而要用原级形式,此外还可用名词、代词、动词、介词短语等。例如:
(1) He is more good than bad.
与其说他坏不如说他好。
(2) It is more a poem than a picture.与其说这是一幅画,不如说这是一首诗
●E more than 或 more... than 后接从句,可表示否定意义。例如:
(1) The beauty of Hangzhou is more than words can describe.
杭州景色之美是说言所不能描述的。
(2) That is more than I can tell you,sir.这一点我是不能告诉你的,先生。
(注意:在这种句型中,more than 后常接含有 can 或 could 的从句,表示“……不能”。)
最终答案:略