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about 【點(diǎn)評(píng)】考查分?jǐn)?shù)的基本構(gòu)成。分?jǐn)?shù)表達(dá)方式:分子要用基數(shù)詞,分母要用序數(shù)詞,當(dāng)分子超過(guò)一時(shí),分母后要加s。three fifths。three fifth。third fifth。third fifths。of the students 【點(diǎn)評(píng)】考查數(shù)學(xué)詞的讀法,注意平時(shí)識(shí)記其讀法規(guī)則。fiftyeight thousand, six hundred and twentysixD.eightyfive thousands, six hundreds and twentysixB. 【點(diǎn)評(píng)】考查數(shù)學(xué)詞的表達(dá),注意平時(shí)識(shí)記確切數(shù)字時(shí)用基數(shù)詞+million表示幾百萬(wàn);表示非確切數(shù)字時(shí)用millions of數(shù)百萬(wàn)的。表示確切數(shù)字時(shí)用基數(shù)詞+million表示幾百萬(wàn);表示非確切數(shù)字時(shí)用millions of,數(shù)百萬(wàn)的......。D.million ofB.million注意識(shí)記thousand的用法。thousand,千,其前有具體數(shù)詞修飾時(shí),用其單數(shù)形式,當(dāng)其前沒有具體數(shù)詞修飾時(shí),用其復(fù)數(shù)形式,且和of連用,thousands of,成千上萬(wàn),這里沒有具體數(shù)詞修飾,故選D。D.C.B.t wait to buy one in our town. A.注意識(shí)記名詞sixteenyearolds。結(jié)合句意,故答案為C。Sixteen year olds【答案】 C 【解析】【分析】句意:16歲的青少年不允許開車。C.Sixteen years old should not be allowed to drive. A. 【點(diǎn)評(píng)】考查數(shù)量詞作定語(yǔ)的用法。Twelve year olds【答案】 B 【解析】【分析】句意:12歲的孩子不應(yīng)該被允許夜晚出去。Twelve years oldTwelveyearoldsTwelveyearsold 【點(diǎn)評(píng)】考查數(shù)量詞在句中作定語(yǔ)的用法。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)。C.8 year old11.Lin Tao, an ______ boy, was very brave and helped his classmates run out of the classroom when the earthquake happened. A.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。D.C.B.s about ________________ kilometers from Nanchong to Chengdu. A. 【點(diǎn)評(píng)】考查數(shù)詞,注意表示世紀(jì)和年齡的用法。in the+四位數(shù)的整數(shù)復(fù)數(shù)形式,在……世紀(jì)……年代,in one39。in the 1970s。 in fiftieth in the fiftiethC.B. in their fifties9.Most of the doctors in this hospital were born ________, and they are ________now. A. 【點(diǎn)評(píng)】此題考查數(shù)詞。他們住在九樓。fifth。five。fifth。five。s family. They live on the8.There are 表示幾歲的生日,要用序數(shù)詞,因此排除A、B;又因前面有物主代詞her,因此不用加定冠詞,故選D。seventieth【答案】 D 【解析】【分析】句意:我們?yōu)槲覀兊膰?guó)家感到驕傲。C.the seventy7.We are proud of our country. The year 2019 is her ____ birthday. A. 【點(diǎn)評(píng)】此題考查數(shù)詞用法。thousand of【答案】 B 【解析】【分析】句意:每年上千本書被捐給農(nóng)村的貧困孩子們。thousands ofthousand 【點(diǎn)評(píng)】 考查數(shù)詞,注意識(shí)記thousand的用法。six thousand