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unit22(选择)(选择)

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请老师具体解释. 11. Mr Smith has much business . I know by that this man can’t be trusted . A. experience , experience B. experiences , experience C. experience , experiences D. experiences , experiences (experience解释为什么时是可数名词?) 12. They would not allow him across the enemy line . A. to risk going B. risking to go C. going to risk D. risk going 15. What worried the child most was to visit his mother in the hospital . A. his not allowing B. his not being allowed C. his being not allowed D. having not been allowed
解题思路: 选择
解题过程:
11.experience作“经历”解时是可数名词;作“经验”解时是不可数名词。 第一个空前面有much,所以第一个空填experience。选项BD被排除。by experience“凭经验;从经验中”的意思。 根据题意“Mr Smith 有很多的经商经验,我的经验告诉我这样的人是不可信的。”所以此题正确答案为A.
12.正确答案为A."他们不会允许他冒险穿越敌人的阵线."risk v. 冒…险,risk doing sth.冒…的危险。
15.正确答案为B, 考察动名词复合结构被动形式及否定形式的掌握。注意否定词not应放在物主代词之后,动名词之前。
最终答案:略