【正文】
。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 根據(jù) thirty boys,可知是三分之二,因?yàn)橐话愕陌嗳萘渴?550名學(xué)生,故答案是C。你們?nèi)畟€男孩應(yīng)該保護(hù)好自己的眼睛。three quarters【答案】 C 【解析】【分析】句意:——爸爸,我們班有45名學(xué)生,所有的男孩戴眼鏡,占班級的三分之二。two thirdsone thirdone fourth29.—Dad, there are 45 students in our class, all boys wear glasses, ________ of the whole class. —Oh, that39。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注意hundred,thousand和million等詞的使用規(guī)則。 ,hundred 后跟of 時,應(yīng)用復(fù)數(shù),前面不能用基數(shù)詞, 故選A。eight hundreds of【答案】 A 【解析】【分析】句意:村子里大約有八百人。C.eight hundreds people in the village. A. 【點(diǎn)評】考查整十?dāng)?shù)的復(fù)數(shù),注意整十?dāng)?shù)的復(fù)數(shù)的使用場合。s+整十?dāng)?shù)的復(fù)數(shù),表示在某人幾十多歲時。the thirtieth【答案】 B 【解析】【分析】句意:政府的二胎政策放開后,她三十多歲生了二胎。C.thirties26.After the government carried out the twochild policy, she had a second child in her________. A.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。25.—Hurry up! The train will arrive at 8 o39。 【點(diǎn)評】考查數(shù)詞辨析。;;;。D.C.B.24.—How many American students came to visit your school yesterday? — Ten. Seven are from New York, and the other _____ are from Boston.A. 【點(diǎn)評】此題考查數(shù)詞。millions of【答案】 A 【解析】【分析】句意:這個城市市民總數(shù)今年已經(jīng)增長到了四百萬。a millionmillionsmillion 【點(diǎn)評】考查倍數(shù)的表達(dá),注意倍數(shù)+as+形容詞+as的用法。three times more cars than【答案】 B 【解析】【分析】句意:在引進(jìn)新設(shè)備后.我們的工廠在2004年的產(chǎn)量是前一年的三倍。three times as many carsC. in 2004 as the year before. A.22.Having introduced the new equipment, our factory turned out根據(jù)句意可知,這里考查的是表示倍數(shù)的句型,twice在這里的意思是兩倍,twice as…as,表示是……的兩倍,并且修飾人口眾多時用形容詞large或big,因此是twice as large as,故選B。D.C.