题目内容
15．She has a fever．（改为一般疑问句）Doesshehavea fever？
分析 她发烧了．
她发烧了吗？
解答 答案：Does，have．原句是含有实意动词have的一般现在时，主语she借助于does构成一般疑问句，后加动词原形have，故答案是Does，have．
点评 一、含有be动词（am/is/are/was/were）动词的一般疑问句，通常把be动词调到句首．
二、含有情态动词（can/may/must/could）的一般疑问句，把情态动词调到句首．
三、句子里没有be动词、助动词、情态动词等，就需要加助动词do，does，、did（过去式）来构成疑问句，加上这些助动词后，句子中谓语动词必须用原形．
其句型为：Do/Does/did+主语+动词原形+其它？
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◆Recycle bottles，paper and plastic．This is a good （38）D to develop and can really make a difference．
◆（39）C turn off lights and electronic devices （设备） when they are not being used．
◆Use your （40）D or walk to nearby locations rather than riding in a car．Encourage your friends and family to （41）A the same．
◆Don't throw your old clothes or toys away．Give（42）B to a local charity （慈善组织） or a friend that may need them．
◆（43）D wasting plastic bags by bringing your own reusable cloth bags to stores．
◆If you see litter，（44）B．
◆By following these tips and using them in your everyday life，you will make the world a（45）B place．It's never too late to start，and what better time is there than right now？
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