高三英语知识点：时态的经典例题解析

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　　高中英语经典例题：
        　　1 They _______ the Summer Palace three times
        　　A have gone to B have been toC have been in
        　　2 The classroom ______ 30 feet long
        　　A is measuredB measuresC has D has length
        　　3 The pencil _____ well
        　　A writes B is written C was written D writing
        　　最佳答案 1B 他们已经去了三次颐和园了。由题意得是(去过) A项指(去了，还没回来。)B项(去过)C项(在《《后多加如for three months等段时间)
        　　2B measure 在本句中有被动意义却无被动式
        　　类似的还有(the pen writes well)(the book sells well)
        　　注：上述例句只有在后加WELL的时候不用被动，如(the book was sold out soon)
        　　3 A 解释通2问