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【點評】考查數(shù)量詞在句中作定語的用法。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)生時幫助他的同學(xué)從教室里跑出來。C.8 year old30.Lin Tao, an ______ boy, was very brave and helped his classmates run out of the classroom when the earthquake happened. A.two是確切數(shù)字,故選A。thousands of【答案】 A 【解析】【分析】句意:在新建立的學(xué)校里大約有2000學(xué)生。thousand ofthousandsthousand 【點評】考查基數(shù)詞和序數(shù)詞,注意基數(shù)詞和序數(shù)詞之間的用法區(qū)別。表示幾號樓,如果先說building,那么后面的數(shù)字使用基數(shù)詞,如果數(shù)字在前就是用序數(shù)詞。D.C.B.28.—What should we do now, Mr. Wang? —Please go to Building ________ to wele the ________ new teacher.A.表示一個人的年齡應(yīng)會使用基數(shù)詞,前面不需要冠詞,故答案是A。the twelve【答案】 A 【解析】【分析】句意:今天是我妹妹的生日。twelfthtwelves birthday today. She39。27.It39。在20世界80年代,固定搭配,in the 1980s,his是限定詞,其后是序數(shù)詞,故選D。the 1980s, first【答案】 D 【解析】【分析】句意:倫納德20世紀(jì)80年代出生于洛杉磯。1980s, firstthe 1980s, the first1980, the first注意序數(shù)詞的拼寫和用法。表示某人多少歲的生日,是第幾個生日,應(yīng)該用序數(shù)詞,第九十,ninetieth,故選B。C.ninetieths ______ birthday and we will have a celebration. A.d love to, but it39。注意hundred,thousand,million的使用規(guī)則。million意思是百萬,當(dāng)和具體數(shù)字連用時,不加s,后面也不加of; 而millions of意思是數(shù)以百萬計的,固定短語;前面有具體數(shù)字four,四,因此用million,故選A。D.C.B.24.The total number of the citizens in the city has increased to over four _________ this year. A. 【點評】考查分?jǐn)?shù)的表達(dá)方式。covered分?jǐn)?shù)的分子用基數(shù)詞,分母用序數(shù)詞,分子大于1時,分母用復(fù)數(shù),因此四分之三,threefourths。threefourth。three fourths。threefourth。注意分?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,分母用復(fù)數(shù)。分?jǐn)?shù)的表達(dá):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,分母用復(fù)數(shù),因此三分之二的英文是 two thirds;in the 2000s,表示21世紀(jì),故選A。two thirds。two third。two threes。two thirds。 of the students in our class were born in the注意分?jǐn)?shù)的表達(dá),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,分母用復(fù)數(shù)。且land 作為集體名詞是不可數(shù)名詞,謂語應(yīng)用單數(shù)形式,所以用is,故選A。 are【答案】 A 【解析】【分析】句意:在那片區(qū)域五分之二的土地被樹和草覆蓋著。D. isC. areB. iscovered with trees and grass. A.of the land in that district 【點評】考查數(shù)詞, 注意數(shù)字的復(fù)數(shù)形式dozens of,幾十的用法。two dozens【答案】 A 【解析】【分析】句意:一只載有幾十名客人的擁擠的浮式餐廳船周四的晚些時候在巴格達(dá)中部的底格里斯河沉了,造成至少八人死亡,而其他幾個人失蹤。two dozens ofdozen ofdozens of20.A crowded f