專(zhuān)題四：數(shù)詞

1、專(zhuān)題四 數(shù)詞易錯(cuò)清單1. 確數(shù)和約數(shù)(1)當(dāng)我們說(shuō)“幾百” 、 “幾千”這樣一些確數(shù)時(shí),“百” 、 “千”是不能用復(fù)數(shù)形式的。結(jié)構(gòu)是:數(shù)詞+hundred/thousand/million/billion+名詞復(fù)數(shù) 如:five hundred 五百;three thousand 三千;two million 兩百萬(wàn);six billion 六十億。(2)當(dāng) hundred,thousand,million 加上 s 后,它們就成了概數(shù)

2、,表示“數(shù)百” 、 “數(shù)千” 、 “數(shù)百萬(wàn)”等概念。而且通常接 of,表示“成百的”,“數(shù)以千計(jì)的”,“成千上萬(wàn)的”,“億萬(wàn)的”等。結(jié)構(gòu)是:hundreds/thousands/millions/billions+of+名詞復(fù)數(shù)。如:hundreds of new tall buildings 數(shù)以百計(jì)的新高樓;thousands of students 數(shù)以千計(jì)的學(xué)生;millions of people 數(shù)以百萬(wàn)計(jì)的人。2. 數(shù)詞和

3、冠詞的關(guān)系(1)一般情況下,序數(shù)詞前要加定冠詞 the,但基數(shù)詞前不加冠詞。如:He failed in the first try. 他第一次嘗試失敗了。My number is forty-nine.我的號(hào)碼是 49。(2)a/an+序數(shù)詞,表示“又一、再一” 。如:The monkey ate a second banana.這只小猴又吃了一根香蕉。(3)of the+基數(shù)詞,表示“范圍” 。如:You can choose a

4、toy of the two as a birthday present.你可以在這兩個(gè)玩具中選一個(gè)作為生日禮物。3. “數(shù)詞+more”與“another+數(shù)詞”(1) 表“另外的”接復(fù)數(shù)名詞,如與具體數(shù)詞連用,則置于數(shù)詞之后,但與定冠詞 the 連用時(shí),other 要放在數(shù)詞前。如:Mr Smith asked me to fetch another three CDs.史密斯先生讓我再拿三張 CD。(2) more 一般位于數(shù)詞之

5、后名詞前,有時(shí)也可置于名詞之后。如:She has got five more pens.她還有五支鋼筆。在考查數(shù)詞時(shí),有時(shí)所給選項(xiàng)非常相似。解題時(shí),首先通過(guò)題干摸清出題人的考查意圖,然后運(yùn)用所學(xué)基本知識(shí),排除所有不適合的選項(xiàng)。【例】 (2013·云南·29)—How many people were invited to the meeting?—About six .A. hundred B. hundredsC

6、. hundred of D. hundreds of【解析】 本題考查基數(shù)詞的基本用法。表達(dá)確數(shù)時(shí),hundred,thousand,million 等詞不能加 s。首先排除 B、D。但是表示約數(shù)時(shí),hundred,thousand,million 等詞與 of 連用,必須加 s。這樣又可以排除 C。答案自然就是 A?！敬鸢浮?A專(zhuān)項(xiàng)訓(xùn)練1. (2014·上海奉賢區(qū)·32) of the city was cove

7、red with the heavy smog.A. Two-third B. Two-thirdsC. Two-three D. Two-threes2. (2014·廣東深圳 · 11)—I am afraid that we need .—Haven't you finished the work yet? It you such a long time.A. two another hours;cos

8、t B. more two hours;spendsC. two hours more;pays D. another two hours;takes3. (2014·內(nèi)蒙古赤峰·36)—When did you have your school trip?— .A. In five days B. For five daysC. Twice a day D. Five days ago4. (2013·江

9、蘇南京)I don't believe that this boy can paint such a nice picture.A. five years old B. five-years-oldC. five-year-old D. five years' old5. (2013·云南)“What's the English for ‘6∶10'?” “It's .”A. six t