题目内容
Relax yourself every day, ________ you'll be too tired to get good grades.
| A．and | B．or | C．for | D．but |
B
解析试题分析：本题中含有特殊句式：祈使句+连词+陈述句=If引导的条件句+主句。这个句型进一步转换成：名词短语+连词+陈述句。如果原句中的连词是and,那么可以转换成一个肯定的条件句；如果原句中的连词是or，可以转换成一个否定的祈使句。本句相当于：If you don’t relax yourself every day, you'll be too tired to get good grades.故B正确。
考点：考察特殊句式中的连词
阅读快车系列答案--With the country’s pension fund gap becoming wider than ever, retirement age should be postponed immediately.
---Easier said than done. we take all factors into account, we shall be faced with some other social problems.
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| A．Whether | B．What | C．That | D．Which |
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