【正文】
注意其作主語(yǔ)時(shí)謂語(yǔ)動(dòng)詞形式的選擇。五分之三的正確表達(dá)是three fifths;帶有分?jǐn)?shù)的短語(yǔ)作主語(yǔ)時(shí),謂語(yǔ)動(dòng)詞由分?jǐn)?shù)后面的名詞形式來(lái)決定,students是復(fù)數(shù)形式,謂語(yǔ)動(dòng)詞要用are,故選D。 are【答案】 D 【解析】【分析】句意:我們班五分之三的學(xué)生是女生。D. isC. areB. isgirls. A.30.In our class 因?yàn)閠eacher是單數(shù),因此不是五位老師,是第五位老師,應(yīng)使用序數(shù)詞,故答案是B。Twelfth, five【答案】 B 【解析】【分析】句意:——現(xiàn)在我們應(yīng)該做什么,王老師?——去十二號(hào)樓接待第五位新老師。Twelve, fiveTwelve, fifthTwelfth, fifth 【點(diǎn)評(píng)】考查基數(shù)詞,注意表達(dá)年齡時(shí)應(yīng)使用基數(shù)詞。她十二歲了。C.B.s ________ years old. A.s my sister39。 【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。掌握分?jǐn)?shù)的表達(dá)方式和主謂一致的用法。故選B。 分?jǐn)?shù)的表達(dá):分子為基數(shù)詞;分母為序數(shù)詞。twothird, has【答案】 B 【解析】【分析】句意:——爸爸,蘋果有三分之二已經(jīng)壞了。C. haveB. haved better eat up the rest as soon as possible.A.of the apples 【點(diǎn)評(píng)】考查數(shù)詞,注意in the 1980s的用法。去年,他在第88屆奧斯卡金像獎(jiǎng)上獲得了第一個(gè)奧斯卡獎(jiǎng)。D.C.B.25.Leonard was born in _______ in Los Angles. Last year, he won his ________Oscar in the 88th Academy Awards. A.倍數(shù)+as+形容詞+as+,……是……倍,固定搭配,故選B。as many cars as three rimesD.cars three times as many asB.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(shí),分母用復(fù)數(shù)。且land 作為集體名詞是不可數(shù)名詞,謂語(yǔ)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(shù)和草覆蓋著。D. isC. areB. iscovered with trees and grass. A.of the land in that district 【點(diǎn)評(píng)】考查倍數(shù)的表達(dá)方式。as twice much as【答案】 B 【解析】【分析】句意:十年前,我們村子的人口是他們的兩倍。twice as much astwice as large asas twice large as22.Ten years ago the population of our village was應(yīng)該是 three fourths ,故選D。Three fourths【答案】 D 【解析】【分析】句意:世界上四分之三的書(shū)報(bào)是用英語(yǔ)寫的。C.Three of quarterss books and newspaper are written in English. A. 【點(diǎn)評(píng)】考查數(shù)詞辨析,注意hundred的用法。thousands of【答案】 B 【解析】【分析】句意:上周,我們學(xué)校5百名學(xué)生參加了運(yùn)動(dòng)會(huì)。hundreds ofhundredthousands 【點(diǎn)評(píng)】考查數(shù)詞,注意根據(jù) Li Hua is going to be an elder brother的語(yǔ)境選擇序數(shù)詞的用法。two【答案】 B 【解析】【分析】句意:李華要當(dāng)哥哥了,他的父母計(jì)劃生二胎。C.second19.Li Hua is going to be an elder brother. His parents are planning to have their ________child. A. 【點(diǎn)評(píng)】考查介詞短語(yǔ),注意in one39。forty