【正文】
根據(jù)is排除C和D選項,one fourth,固定搭配,4分之1,分子用基數(shù)詞分母用序數(shù)詞 , 故選B。nine。ninth。 【點評】考查了基數(shù)詞與序數(shù)詞的辨析,注意,區(qū)分兩者。ton ofB.ton,噸,前面沒有具體數(shù)字,因此用tons of,大量的,故選C。ThousandsD.20.Last week, five ____ students took part in the sports meeting in our school A.C.根據(jù)句子前面有five,可知hundred后面不加s,hundreds of和thousands of前面不用數(shù)詞修飾,故選B。Three quarterD. 【點評】考查英文中分?jǐn)?shù)的寫法。B.D.23.A crowded floating restaurant boat loaded withdozen oftwo 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。as many cars as three rimesD.25.—Hurry up! The train will arrive at 8 o39。s just 7:40.A.thirty【答案】 C 【解析】【分析】句意:——快點!火車將在8點鐘到達(dá)。s just 7:,故選C。thirtiesC.s+整十?dāng)?shù)的復(fù)數(shù),表示在某人幾十多歲時。TwoD.28._______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(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。Twelfth, fifthTwelve, fifthTwelve, fiveTwelfth, five【答案】 B 【解析】【分析】句意:——現(xiàn)在我們應(yīng)該做什么,王老師?——去十二號樓接待第五位新老師。30._______, when Marx was already _______, he found it was important to study the situation in Russia, so he began to learn Russian. A.in the 1870s十九世紀(jì)七十年代;in one39。 【點評】考查時代的表達(dá)方式和固定短語。D.In 1870s, in fiftiesC.因為teacher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。注意hundred,thousand和million的使用規(guī)則。C.Thousands ofA基數(shù)詞,二,B兩次,頻率副詞,C序數(shù)詞,第二,D第二個......,根據(jù) How often,可知提問頻率,故用表示次數(shù)的詞,故選B。SecondB. 【點評】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。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。26.After the government carried out the twochild policy, she had a second child in her________. A.才7點40。C.twelvet worry! There39。倍數(shù)+as+形容詞+as+,……是……倍,固定搭配,故選B。cars three times as many asB. 【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 ofdozens of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。C. that of theirs. A.英文中分?jǐn)?shù)的表示方法,分子用基數(shù)詞分母用序數(shù)詞,分子大于一,分母應(yīng)加s。Third fourthsB.21._________ of the wo