【題目】If we _______ take environment problems seriously , the earth ______worse and worse.

A.don’t ; won’t beB.won’t be ; isn’t

C.won’t ; isD.don’t ; will be

【答案】D

【解析】

句意:如果我們不認(rèn)真對(duì)待環(huán)境問(wèn)題,地球會(huì)變得越來(lái)越糟。

考查if條件狀語(yǔ)從句的用法。根據(jù)題干及語(yǔ)境,可知此句是if引導(dǎo)的條件狀語(yǔ)從句,if的意思為"如果";其時(shí)態(tài)遵循主將從現(xiàn);所以前面的從句應(yīng)用一般現(xiàn)在時(shí)表將來(lái),此句是指如果我們不認(rèn)真對(duì)待環(huán)境問(wèn)題,故用否定的don't;故排除B、C選項(xiàng);后面的主句是指"地球?qū)?huì)變得越來(lái)越糟",所以表肯定,主句用一般將來(lái)時(shí),will+動(dòng)詞原形;綜合以上分析,故答案選D

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