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。firstsevenseventh 【點(diǎn)評(píng)】考查數(shù)詞用法,注意平時(shí)識(shí)記,理解句意。B.the seventieth2019年是她的70歲誕辰。years old. We39。seventy, seventiethC.s+序數(shù)詞+birthday,故選B。 in fiftiethin the+四位數(shù)的整數(shù)復(fù)數(shù)形式,在……世紀(jì)……年代,in one39。C.由句意可知,這里說(shuō)的是“兩百公里”two是基數(shù)詞表示確切的數(shù)字,不能用百、千的復(fù)數(shù)形式,“two hundred”;但當(dāng)基數(shù)詞表示不確切數(shù)字,百、千后就要用復(fù)數(shù)形式,如“hundreds of”,故選C。C.8 year olds【答案】 A 【解析】【分析】句意:林濤,八歲的男孩,很勇敢并且在地震發(fā)生時(shí)幫助他的同學(xué)從教室里跑出來(lái)。. A. 【點(diǎn)評(píng)】考查數(shù)詞和名詞的用法。two thirds你們?nèi)畟€(gè)男孩應(yīng)該保護(hù)好自己的眼睛。tenth【答案】 C 【解析】【分析】句意:九月是一年的第九個(gè)月。sixD.B.注意表示確定數(shù)量與不確定數(shù)量的用法。hundredmore than twiceas twice as manyC.more than twice as many【答案】 D 【解析】【分析】句意:美國(guó)人現(xiàn)在每個(gè)人吃蔬菜的比1910年的兩倍還多。C.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。Two fifths。Two fifth。 【點(diǎn)評(píng)】考查分?jǐn)?shù)的表達(dá)和be動(dòng)詞用法。注意基數(shù)詞和序數(shù)詞的構(gòu)成。twentyD.Thousands birthday today. She39。A number,one secondTwelveyearsold 【點(diǎn)評(píng)】考查數(shù)量詞作定語(yǔ)的用法。TwelveyearoldsD.B.the twelve【答案】 A 【解析】【分析】句意:今天是我妹妹的生日。twelveThousand 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。——不用著急!還有20分鐘。clock. —Don39。D.C.B.of the students were born in 2002. A.24.There are 300 students in Grade Nine. About 23.B. 【點(diǎn)評(píng)】考查倍數(shù)的表達(dá)方式。thousands seats to audience. A.——是的,這是她第六次獲得一等獎(jiǎng)。B.根據(jù)句意,可知九月是一年的第九個(gè)月,故選C。根據(jù) thirty boys,可知是三分之二,因?yàn)橐话愕陌嗳萘渴?550名學(xué)生,故答案是C。one third16.—Dad, there are 45 students in our class, all boys wear glasses, ________ of the whole class. —Oh, that39。B.SixteenyearoldD. 【點(diǎn)評(píng)】考查數(shù)量詞在句中作定語(yǔ)的用法。8 year old13.Lin Tao, an ______ boy, was very brave and helped his classmates run out of the classroom when the earthquake happened. A.B. 【點(diǎn)評(píng)】考查數(shù)詞,注意表示世紀(jì)和年齡的用法。11.Most of the doctors in this hospital were born ________, and they are ________now. A. 【點(diǎn)評(píng)】考查序數(shù)詞的基本用法。seventysecond【答案】 D 【解析】【分析】句意:——你好,泰德!上個(gè)月去黃色的旅行怎么樣呢?——好極了!我盼望這能再去一次。6.—Hi, Ted! How was your t