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。s healthy to fall asleep before 10 ,10點(diǎn)之前睡覺(jué)是健康的,因此他在9點(diǎn)睡覺(jué),故答案選A。clock此處表示鐘點(diǎn),用基數(shù)詞,排除BD兩項(xiàng)。nine九,是基數(shù)詞;ninth第九,是序數(shù)詞;twelve十二,是基數(shù)詞;twelfth第十二,是序數(shù)詞。twelfth【答案】 A 【解析】【分析】句意:——上學(xué)的晚上你通常什么時(shí)候睡覺(jué)?——大約9點(diǎn)。twelveninthnineclock. It39。注意定語(yǔ)從句的關(guān)系詞的使用和序數(shù)詞的用法。第一句是含有定語(yǔ)從句的主從復(fù)合句,先行詞指人,在句中作主語(yǔ),關(guān)系詞用who或that,某人第幾次做某事用序數(shù)詞,故選A。他是我們的總統(tǒng)。which。 fiveC.that。 fifth29.—Do you know the man ________ visited France in March? —Yes. He is our president. He said it was his ________ visit to France.A. 【點(diǎn)評(píng)】考查數(shù)詞用法。hundred,百,與基數(shù)詞搭配時(shí),不用復(fù)數(shù)。D.eight hundred ofB.eight hundred28.There are about 【點(diǎn)評(píng)】考查數(shù)字表達(dá)法辨析。Thousand of【答案】 B 【解析】【分析】句意:今年五一勞動(dòng)節(jié)那天,成千上萬(wàn)的人參觀了重慶紅巖洞。B.Thousand 【點(diǎn)評(píng)】考查數(shù)詞和連詞,注意根據(jù)You will see的語(yǔ)境選擇合適的用法。當(dāng)你進(jìn)入山谷時(shí),你會(huì)看到有四百多種蝴蝶飛來(lái)飛去。hundreds。hundred。hundreds of。hundred。 【點(diǎn)評(píng)】考查數(shù)詞的用法,牢記數(shù)詞表示確數(shù)和概數(shù)的不同用法。millions of【答案】 B 【解析】【分析】句意:公司決定花5百萬(wàn)為那個(gè)小村莊的孩子們建一所學(xué)校。C.millionyuan building a school for the children in that small village. A. 【點(diǎn)評(píng)】考查數(shù)詞辨析,牢記基數(shù)詞和序數(shù)詞的不同意義和用法。我們每個(gè)人能參加三個(gè)活動(dòng)。Three。Third。Three。Third。 Cultural Festival? —Yes. And each of us can take part in 24.—Our school is going to hold the 【點(diǎn)評(píng)】考查分?jǐn)?shù)的表達(dá)和be動(dòng)詞用法。分?jǐn)?shù)由基數(shù)詞和序數(shù)詞構(gòu)成,分子用基數(shù)詞,分母用序數(shù)詞,分子大于1時(shí),分母用復(fù)數(shù),所以五分之二的表達(dá)為two fifths。Two fifths。Two fifth。Two fifth。Two fifths。 23.根據(jù)可數(shù)名詞復(fù)數(shù)guests和 at least eight people dead and several others ,而其他幾個(gè)人失蹤 ,可知總?cè)藬?shù)不確定,因此用固定搭配dozens of,幾十,數(shù)詞的復(fù)數(shù)形式+of,表示概數(shù),故選A。D.C.B. guests sank in the Tigris River in central Baghdad late on Thursday, leaving at least eight people dead and several others missing. A. 【點(diǎn)評(píng)】考查序數(shù)詞的基本用法。——是的,這是她第六次獲得一等獎(jiǎng)。D.the sixB.sixs excited to hear that Jessie J got the King of Singer in the end. — Yes, it39。 【點(diǎn)評(píng)】考查分?jǐn)?shù)表達(dá),注意平時(shí)識(shí)記。分子用基數(shù)詞,分母用序數(shù)詞,中間用連字符,若分子大于一,分母用復(fù)數(shù)形式?!蓿钦婵膳?。D.third fourthsB.three fourthof our classmates wear glasses. —Oh, that39。 【點(diǎn)評(píng)】考查了序數(shù)詞與基數(shù)詞辨析,注意兩者意義的區(qū)分。one一個(gè),two兩個(gè),third第三,three三個(gè)。D.thirdB.ones office is on the 【點(diǎn)評(píng)】考查了基數(shù)詞與序數(shù)詞的辨析,注意,區(qū)分兩者