2.(2011四川高考)As is reported,it is 100 years ______ Qinghua University was founded.
A.when B.before
C.a(chǎn)fter D.since
解析:句意:正如報(bào)道的那樣,清華大學(xué)已建校100年了。when“當(dāng)……時(shí)候”;before“在……之前”;after“在……之后”;since“自從”。It is some time since...為固定句型。根據(jù)句意可確定正確選項(xiàng)為D。
答案:D
3.(2011天津高考)______ regular exer cise is very important,it’s never a good idea to exercise too close to bedtime.
A.If B.As
C.Although D.Unless
解析:句意:雖然有規(guī)律的鍛煉很重要,但在臨睡覺(jué)前鍛煉卻從來(lái)不是個(gè)好主意。if可引導(dǎo)條件狀語(yǔ)從句,表示“如果”;as可引導(dǎo)時(shí)間狀語(yǔ)從句,表示“當(dāng)……時(shí)”,若引導(dǎo)讓步狀語(yǔ)從句,句子需用倒裝;分析前句“有規(guī)律的鍛煉很重要”和后句“臨睡前鍛煉卻不好”可知,前句為后句的讓步狀語(yǔ),故選C