20.It's cold outside.Put on more clothes,______ you will catch a cold.(  )
A.orB.andC.soD.but

分析 外面天冷.多穿點(diǎn)衣服,否則你會(huì)感冒.

解答 答案:A  or或者,否則;and和,并且;so因此;But但是.根據(jù)前后句多穿衣服和你會(huì)感冒之間構(gòu)成在以祈使句為條件下的相反假設(shè).可理解為不多穿衣服你就會(huì)感冒.這里前面的句子Put on more clothes為肯定的祈使句,所以后句就應(yīng)該用表示相反假設(shè)的連詞,意為否則,要不然;結(jié)合選項(xiàng)只有or有此含義.故選A.

點(diǎn)評(píng) 此題考查并列連詞的辨析.做題時(shí)要先結(jié)合前后句的語(yǔ)境,準(zhǔn)確把握句意,弄清楚前后句之間的關(guān)系;再結(jié)合選項(xiàng)選出符合句意的連詞連接即可.要求學(xué)生歸納總結(jié)并列連詞的用法,記住一些常用的表如下關(guān)系的連詞,如并列關(guān)系、選擇關(guān)系、轉(zhuǎn)折關(guān)系、因果推理關(guān)系等.

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