Question

5．当你学习遇到困难时，请不要放弃．
Please don'tgiveupwhen you have difficulties in study．

Answer 1

分析 give up．

解答 答案：give up．这里的主句是一个祈使句，don't后加上动词原形，表示放弃用动词短语give up，故答案是give up．

点评 祈使句指的是表示命令、请求、建议或劝告的句子．其主语you常省略，谓语动词用原形，句末用感叹号或句号，读降调． 1．肯定的祈使句 （1）动词原形+其他       Stand up，please．=Please stand up．请起立． （2）Be+n．/adj．Be careful!=Look out!=Take care!小心/当心！（3）Let+宾语+动词原形+其它成分  Let's go to school together．咱们一起上学去吧． 2．否定的祈使句 （1）Don't+动词原形  Don't stand up．别站起来．   （2）Let型的否定式有两种："Don't+let+宾语+动词原形+其它成分"和"Let+宾语+not+动词原形+其它成分"．       Don't let him go．/Let him not go．别让他走．      Let them not play with fire．别让他们玩火．