2.-Do you know if she _______  to visit us?
-I think she will come if she ________ free tomorrow.(  )
A.comes; isB.will come; is
C.comes; will beD.will come; will be

分析 --你知道她是否會(huì)來(lái)看望我們嗎?
--我認(rèn)為如果她明天有空,她會(huì)來(lái)的.

解答 答案:B
此題考查if引導(dǎo)的從句:if意為"是否"引導(dǎo)賓語(yǔ)從句,if意為"如果",引導(dǎo)條件轉(zhuǎn)語(yǔ)從句;
根據(jù)題干句意知第一個(gè)if為"是否"之意,故符合賓語(yǔ)從句時(shí)態(tài)規(guī)則,主句Do you know為一般現(xiàn)在時(shí),從句可根據(jù)自身情況選擇,根據(jù)答語(yǔ)知她來(lái)看望是發(fā)生在將來(lái)的事,故應(yīng)用一般將來(lái)時(shí),will come;
第二個(gè)if意為"如果"故采用條件狀語(yǔ)從句:主將從現(xiàn),if所在為從句,使用一般現(xiàn)在時(shí),且主語(yǔ)為第三人稱單數(shù)she,故填is.故選B.

點(diǎn)評(píng) 此題重在考查if引導(dǎo)的賓語(yǔ)從句和條件狀語(yǔ)從句.考生需根據(jù)句意明確判斷詞意,再根據(jù)不同的從句采用不同的時(shí)態(tài).

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