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。四分之三用three fourths或者three quarters,故選D。你們都應(yīng)該好好照顧你們的眼睛。three quarters【答案】 D 【解析】【分析】句意:——爸爸,大約四分之三的同學(xué)戴眼鏡。C.third fourths terrible. You all should take good care of your eyes. A.30.—Dad, about 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(diǎn)評】考查基數(shù)詞,注意表達(dá)年齡時應(yīng)使用基數(shù)詞。她十二歲了。C.B.s ________ years old. A.s my sister39。注意hundred,thousand和million的使用規(guī)則。thousand千,有具體的數(shù)字修飾需用原形;和of連用則用復(fù)數(shù)形式,意思是成千上萬的,前面沒有具體的數(shù)字,因此用復(fù)數(shù)形式,故選B。C.Thousands of27._______people visited Hongyadong, Chongqing on May Day this year. A.數(shù)詞+hundred,幾百,用hundred 的單數(shù)形式,hundreds of,好幾百,不和數(shù)詞搭配,故排除B和D;進(jìn)入山谷和看見蝴蝶之間是并列關(guān)系,因此用when, 當(dāng)……時,while表對比,until與not連用,if表假設(shè),均不符題意,故選A。 if【答案】 A 【解析】【分析】句意:在云南省,有一個以蝴蝶聞名的山谷。D. untilC. whileB. when26.In Yunnan province, there is a valley famous for its butterflies. You will see over four _______kinds of butterflies flying around ________ you get into the valley. A. 【點(diǎn)評】此題考查數(shù)詞和主謂一致。分子大于一的分母用復(fù)數(shù);故排除A和D;分?jǐn)?shù)修飾名詞做主語時,謂語動詞與后面的名詞的數(shù)保持一致;apples是可數(shù)名詞復(fù)數(shù),故用動詞原形?!覀冏詈每禳c(diǎn)吃掉其余的。D.two thirds, hastwothirds。twothird。gone bad. — Well, we39。25.— Dad, s just 7:,故選C。才7點(diǎn)40。thirty【答案】 C 【解析】【分析】句意:——快點(diǎn)!火車將在8點(diǎn)鐘到達(dá)。C.twelves just 7:40.A.t worry! There39。24.—Hurry up! The train will arrive at 8 o39。 【點(diǎn)評】考查數(shù)詞。nintieth【答案】 B 【解析】【分析】句意:——嗨,杰克!放學(xué)后踢足球怎么樣?——我很樂意,但今天是我祖父的九十歲生日,我們要慶祝一下。B.ninetiths my grandfather39。23.—Hi, Jack! What about playing soccer after school? —I39。根據(jù)語境可知第三屆文化節(jié),是第三次,要用序數(shù)詞the third,三個活動,表示數(shù)量;要用基數(shù)詞three,修飾可數(shù)名詞復(fù)數(shù),故選C。 three【答案】 C 【解析】【分析】句意:——我們的學(xué)校打算舉辦第三屆文化節(jié)嗎?——是的。D. threeC. thirdB. thirdactivities.A. 【點(diǎn)評】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 as21.Ten years ago the population of our village wasmore than twice,表示數(shù)量,放在as … as結(jié)構(gòu)前,是……的兩倍多,故選D。D.twice as ma