题目内容
18．You look very nice in your new dress todayThank you．I ______ it a week ago．（ ）| A． | buy | B． | bought | C． | have bought | D． | will buy |
分析 --你今天穿的新衣服很漂亮．
--谢谢，我一星期前买的．
解答 答案：B 本题考查时态辨析．根据句中的a week ago，可知时态是一般过去时，句中动词buy要用过去式bought，故选择B．
点评 本题考查时态辨析．做此题目可根据句中的时间状语或句中的动词形式．也可根据语境，判断时态，从而选出正确的形式完成此类题．
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There are many different between Chinese and American in the school or in the classroom．At the beginning of the term，students must select their course and teachers．（60）BSelecting is very important for your grades．So at the first term，don't select too many courses，or you will feel very nervous and it may influence your study．You have to ask for some syllabus（大纲）．There is some information about subjects，time arranging，marks and textbooks．（61）ADifferent teachers have different teaching methods．If the teacher is called"killer"by the last grade，many students will give up choosing him．Because this kind of teacher will leave too much homework，too many exams and give too low grades．
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