人教課標(biāo)高二第8冊 Unit2Cloning 課堂輔導(dǎo)
Grammar 1. This happens in plants when gardeners take cuttings from growing plants to make new ones, and when small parts of a plant are taken and grown in a laboratory. 當(dāng)園藝師從生長著的植物上剪下枝條來培植新植物時,當(dāng)你從植物上取下一小部分放在實(shí)驗(yàn)室里生長時,就會產(chǎn)生這種現(xiàn)象。(P.11)
「考點(diǎn)」 “when gardeners take cuttings from growing plants to make new ones, and when small parts of a plant are taken and grown in a laboratory.”是兩個時間狀語從句。when引導(dǎo)的時間狀語從句中從句的動作可以與主句的動作同時發(fā)生,也可以先于主句的動作。
「考例」 Don‘t be afraid of asking for help _____ it is needed. (03,全國)
A. unless B. since C. although D. when「解析」 答案D.題意為:當(dāng)需要幫助時,不要害怕向人求助。四個選項(xiàng)都是可用于引導(dǎo)狀語從句的從屬連詞,如果只是按照結(jié)構(gòu)形式考慮,是無從下手的,應(yīng)該從語義來考慮。從語言運(yùn)用的角度看,此處的具體語境為向?qū)Ψ教岢鲆;后一句?yīng)該表達(dá)出“凡有需要時”的意思,選項(xiàng)D為最佳答案。
2. The fact that she seemed to develop normally was very encouraging. (P.12) 多莉看來是在正常地成長著,這很令人鼓舞。
「考點(diǎn)」 “that she seemed to develop normally”是同位語從句。
「歸納」 同位語從句可由when/ where/ how/ why/that/ whether等詞引導(dǎo)。同位語從句的先行詞多半是idea/ fact/ news/ hope/ belief/ thought/ doubt/ question等。同位語從句一般放在抽象名詞之后,用以說明抽象名詞的具體內(nèi)容,有時為了保持句子的平衡,同位語從句還可以放在動詞的后面。如:Soon word came that we won. 不久就傳來了我們贏了的消息。
「考例」 A warm thought suddenly came to me _____ I might use the pocket money to buy some flowers for my mother‘s birthday. (06,安徽)
A. if B. when C. that D. which
「解析」 答案C.題意為:我腦海中突然出現(xiàn)一個溫馨的念頭,用我的零花錢給媽媽買些鮮花作為她的生日禮物。本題a warm thought 與其同位語從句被 suddenly came to me 隔開,增加了試題難度。
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