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million,人口,故選B。7.Nowadays, ________ people like HUAWEI phones better, and about ________ of them are adults. A. fourfifthsa number of。a number of。D. fourfive【答案】 C 【解析】【分析】句意:現(xiàn)在大量的人更喜歡華為手機(jī),并且大約他們中的五分之四是成年人。表示分?jǐn)?shù)時(shí)分母用序數(shù)詞,分子用基數(shù)詞,分子大于1時(shí),分母用復(fù)數(shù),四是分子,所以用基數(shù)詞four,5是分母,用序數(shù)詞,分子大于一,所以用復(fù)數(shù)fifths,所以五分之四用fourfifths,故選C。8.There are 24 solar terms in a year. Grain Rain often starts in April, the ________ month of the year. A.B.C.谷物雨通常在一年中的四月開(kāi)始??崭袂坝卸ü谠~the與可數(shù)名詞單數(shù)month,要用序數(shù)詞。 【點(diǎn)評(píng)】考查序數(shù)詞辨析。9.of the students in our class _____going to the summer camp in Beijing next week. A.B.C.D.句意:我們班五分之二的學(xué)生下周要去北京參加夏令營(yíng)。 分?jǐn)?shù)+of+名詞作主語(yǔ)時(shí),如果名詞是復(fù)數(shù),謂語(yǔ)動(dòng)詞用復(fù)數(shù)結(jié)構(gòu), 故選D。注意分?jǐn)?shù)+of+名詞作主語(yǔ)時(shí),謂語(yǔ)動(dòng)詞的結(jié)構(gòu)。sevensixseventhsixth【答案】 C 【解析】【分析】句意:——你最喜歡一年中哪個(gè)月?——七月,第七個(gè)月?;鶖?shù)詞;,基數(shù)詞;,序數(shù)詞;,序數(shù)詞。 【點(diǎn)評(píng)】考查數(shù)詞用法,注意平時(shí)識(shí)記,理解句意。years old. We39。birthday on October 1, 2019 around the country. A.seventy, seventiethC.D.seventy,70,基數(shù)詞;seventieth,第70,序數(shù)詞。s+序數(shù)詞+birthday,故選B。12.—How handy books are there on the shelf? —Well. I think there are books. A.two hundreds and fortyC.表示數(shù)量246時(shí),百位與十位之間要用and連接,且hundred被具體數(shù)字修飾時(shí),用單數(shù)形式。 【點(diǎn)評(píng)】考查數(shù)學(xué)詞表達(dá),注意平時(shí)識(shí)記幾百幾十幾的表達(dá)。in the 1970。in 1970s。in the 1970s。D. in their fifties【答案】 D 【解析】【分析】句意: 這家醫(yī)院的大多數(shù)醫(yī)生都出生于20世紀(jì)70年代,現(xiàn)在他們都是50多歲。s+兩位數(shù)的整數(shù)復(fù)數(shù)形式,在某人多大歲數(shù)時(shí) , 故選D。14._________ of the teachers are women in our school. A.B.C.D.表達(dá)分?jǐn)?shù)時(shí),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)。 【點(diǎn)評(píng)】考查分?jǐn)?shù)表達(dá),注意平時(shí)識(shí)記其表達(dá)規(guī)則。TwelveyearsoldTwelveyearoldsTwelve years oldTwelve 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。 【點(diǎn)評(píng)】考查數(shù)量詞作定語(yǔ)的用法。s got ______________ them. A.B.C.D.表示確切數(shù)字時(shí)用基數(shù)詞+million,幾百萬(wàn);表示非確切數(shù)字時(shí)用millions of,數(shù)百萬(wàn)的,固定搭配,故選B。17._______, when Marx was already _______, he found it was important to study the situation in Russia, so he began to learn Russian. A.In 1870s, in fiftiesC.D.in the 1870s十九世紀(jì)七十年代;in one39。 【點(diǎn)評(píng)】考查時(shí)代的表達(dá)方式和固定短語(yǔ)。18.It39。quarterB.