【正文】
time to get the first prize.A.sixth根據(jù)句意可知此句需要序數(shù)詞,因前面有物主代詞her,定冠詞the要省略,故選B。thousandthousand of 【點評】考查數(shù)詞thousand的用法。B.D.20.About ______ of the earth ______ covered with water, but we have less and less available fresh water. A.B.C.D.three fourths;be分子用基數(shù)詞,分母用序數(shù)詞,分子大于1時,分母用復數(shù)。cars three times as many asB.倍數(shù)+as+形容詞+as+,……是……倍,固定搭配,故選B。大約五分之四的學生出生于2002年。注意基數(shù)詞和序數(shù)詞的構(gòu)成。 【點評】此題考查數(shù)詞。t worry! There39。twelveC.才7點40。25.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. whileC. 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。26._______people visited Hongyadong, Chongqing on May Day this year. A.thousand千,有具體的數(shù)字修飾需用原形;和of連用則用復數(shù)形式,意思是成千上萬的,前面沒有具體的數(shù)字,因此用復數(shù)形式,故選B。C.eight hundreds of【答案】 A 【解析】【分析】句意:村子里大約有八百人。注意hundred,thousand和million等詞的使用規(guī)則。因為teacher是單數(shù),因此不是五位老師,是第五位老師,應使用序數(shù)詞,故答案是B。表達確切數(shù)字時用基數(shù)詞+million,表示幾百萬;表達非確切數(shù)字時用millions of,數(shù)百萬,故選D。s terrible. You all should take good care of your eyes. A.third fourth你們都應該好好照顧你們的眼睛。四分之三用three fourths或者three quarters,故選D。three quarters【答案】 D 【解析】【分析】句意:——爸爸,大約四分之三的同學戴眼鏡。C.30.—Dad, about D.C.B.29.Basketball is so exciting that ______ people play it for fun. A.Twelfth, five【答案】 B 【解析】【分析】句意:——現(xiàn)在我們應該做什么,王老師?——去十二號樓接待第五位新老師。Twelve, fiveTwelve, fifthTwelfth, fifth ,hundred 后跟of 時,應用復數(shù),前面不能用基數(shù)詞, 故選A。eight hundreds people in the village. A.注意hundred,thousand和million的使用規(guī)則。C.Thousands of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;進入山谷和看見蝴蝶之間是并列關(guān)系,因此用when, 當……時,while表對比,until與not連用,if表假設,均不符題意,故選A。D. untilB. whens just 7:,故選C。thirty【答案】 C 【解析】【分析】句意:——快點!火車將在8點鐘到達。s just 7:40.A.24.—Hurry up! The train will arrive at 8 o39。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故選B。D.C.B