Unit 1：学时1高频单词(必修五).ppt

考点8　　contribute vt. 贡献出，捐助　vi. 投稿 【课文如是】　to contribute(课本P4) contribute...to... 把……贡献给…… contribute to 为……作出贡献；把时间投入……；有助于，导致 contribution n. 捐献物，贡献物；捐款；稿件 make a contribution to 对……作出贡献 contribution to 对……的贡献 contributor n. 撰稿者；捐助者；起作用的人或因素 【典例填充】 1．He offered to __________ __________the Red Cross. 他主动向红十字会捐款。 [答案]　contribute to 2．Various factors __________ __________his downfall.各种因素导致了他的倒台。 [答案]　contributed to 3．He __________ __________ __________ __________ __________ __________ the overall success of the project. 他对项目的全面成功做出了非常积极的贡献。 [答案]　made a very positive contribution to 【即学即练】 To be honest，my carelessness__________a lot to my failure. A．contributed B．donated C．provided D．offered [解析]　句意：说实话，我的失败主要是因为我的粗心大意。contribute to 导致。donate 捐献；provide 提供；offer (主动)提供。 [答案]　A 1．We can not__________whether a child is clever or stupid from his or her points in an examination. A．conduct B．notice C．understand D．conclude [解析]　句意：从一个孩子的考试分数上我们不能推断这个孩子是聪明还是愚笨。conclude 推断出；conduct 带领，管理，表现；notice 注意到；understand 理解。根据句意，D项为正确选项。 [答案]　D 2．__________in her new novel，the young writer kept thinking and writing for a dozen hours in her study. A．Having deeply absorbed B．Deeply absorbing C．Deeply having been absorbed D．Deeply absorbed [解析]　be absorbed in “全神贯注于……”，absorbed...为形容词短语作状语，说明主语the young writer 所处的一种状态。句意：那位年轻作家沉浸于她的新小说中，在书房里一直思考并写了12个小时了。 [答案]　D 3．__________to nuclear radiation，even for a short time，may produce variants(变异体)of genes in human bodies. A．Being exposed B．Having exposed C．Exposed D．After being exposed [解析]　分析句子结构可知__________to...应在句中作主语，故用动名词形式；be exposed to “暴露于……”。句意：暴露在核射线下即使很短的时间人体都可能产生基因变异。 [答案]　A 4．They blamed the failure on George.Actually，he__________. A．is not to blame B．is to blame C．is not to be blamed D．should not blame [解析]　sb. be to blame 表示“某人被责备”。又由actually 知此处应用A。 [答案]　A 5．Eating too much fat can__________heart disease and cause high blood pressure. A．result from B．contribute to C．attend to D．devote to [解析]