第3题: [单项选择](Though) some people have suggested that women (would return to) housework (in order to) leave more jobs for men, but the idea has been rejected (by) both women and men in public polls. A. Though B. would return to C. in order to D. by 参考答案:A 答案解析:在表示“虽然……但是……”时，though与but不能同时出现，后面已用了but，就不能用though，应将though去掉。
第9题: [单项选择]Walt stayed because ______. A. there were no people around B. Shorty had gone shopping C. people went fishing on the lake D. Shorty had asked him to watch the boats and the shop 参考答案:D 答案解析:根据第2个自然段中He (Shorty) had told Walt to watch the boats and the shop，可以断定Walt留下的原因。
第18题: [单项选择]我国法定计量单位的主体是( )。 A. CGS单位 B. 工程单位 C. SI单位 D. MKS单位 参考答案:C 答案解析:[解析] 国际单位制是在米制的基础上发展起来的一种一贯单位制，其国际通用符号为“SI”。SI单位是我国法定计量单位的主体，所有SI单位都是我国的法定计量单位。此外，我国还选用了一些非SI的单位，作为国
