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徐州专版2020中考英语复习方案第二篇语法专题突破专题03数词课件
专题 (三) 数 词 第二篇 语法专题突破 考点一 基数词 1. 基数词的基本形式 (1)1 — 12 独立成词 , 需逐个记忆。 (2)13 — 19 的基数词以 -teen 结尾。尤其要注意 thirteen, fifteen, eighteen 的正确拼写。 (3) 表示“整十”的基数词 (20 — 90) 都以 -ty 结尾。其中要特别注意 twenty, thirty, forty, fifty, eighty, ninety 的正确拼写。 (4)hundred, thousand, million, billion 等词前有具体数字时 , 不能加 -s, 也不与 of 连用 ; 无具体数字时 , 要加 -s, 且与 of 连用。 2. 基数词的其他表达形式 (1)21 — 99 的写法是在十位和个位中间加连字符号“ - ”。 36 — thirty-six 97 — ninety-seven (2)101 — 999 的构成是百位和十位之间 ( 若十位为零 , 则在百位和个位之间 ) 用 and 连接。 601 — six hundred and one 755 — seven hundred and fifty-five (3) 四位数或者四位数以上的基数词的拼写规律:从右往左每三位加一个逗号 , 第一个逗号读作 thousand( 千 ), 第二个逗号读作 million( 百万 ), 第三个逗号读作 billion( 十亿 ) 。 94,295 — ninety-four thousand two hundred and ninety-five (4) “基数词 - 单数名词”相当于复合形容词 , 只能作定语 , 用于表示时间、距离等。 a ten-minute walk 步行 10 分钟的路程 (5) “基数词 +more ”与“ another+ 基数词”意义相同 , 表示“再 …… ; 另外 …… ” 。 two more days=another two days 另外两天 考点二 序数词 构成 说明 例词 规则 变化 大多数序数词由“基数词 +-th ”构成 four — fourth 以 y 结尾的整十基数词变序数词 , 要变 y 为 ie, 再加 -th thirty — thirtieth fifty — fiftieth 20 以上的非整十基数词变序数词 , 要将末位数改成序数词 , 其他位数仍用基数词 thirty-one — thirty-first 不规则 变化 少数序数词的构成属于特殊情况 , 需要特殊记忆 one—first two—second three—third five—fifth eight—eighth nine—ninth twelve—twelfth 【 巧学妙记 】 基变序 , 有规律 , 词尾加上 -th; 一、二、三 , 特殊记 , 结尾字母 t, d, d(first, second, third); 8 去 t(eighth), 9 去 e(ninth), ve 要用 f 替 (fifth, twelfth); 遇 y 变 ie, 然后再加 -th; 遇到“几十几” , 只变个位就可以。 考点三 数词的表达方式 March 12, 2020 2020 年 3 月 12 日 one third 三分之一 two thirds 三分之二 five (o'clock) 5 点钟 five past seven 7 点 5 分 twenty to eight 7 点 40 分 Page 62/the sixty-second page 第 62 页 in the 1970s 在 20 世纪 70 年代 in his forties 在他四十多岁时 考点四 数词的注意事项 1. hundred, thousand, million 前有基数词修饰时 , 表示确数 , 其后不加“ -s ” , 也不与 of 连用 ; 但表示“数百、数千、数百万”这样的概数时 , 后面加“ -s ” , 并与 of 连用。 There are two hundred people in the hall. 大厅里有 200 人。 Thousands of people go to the beach every year. 每年有成千上万的人到海滩去。 Millions of people in the world are sending and receiving e-mails every day. 每天世界上有数百万人在收发邮件。 2. 序数词在使用时 , 通常前面要加定冠词 the; 但如果序数词前出现不定冠词 a 或 an, 则表示“再一 ; 又一” ; 当序数词前有物主代词时 , 不需加 the 。 We've tried it twice. Must we try it a third time? 我们已经试过两次了。我们必须再试一次 ( 第三次 ) 吗 ? 3. 以下复合形容词中的名词要用单数形式。 (1) 基数词 - 名词 ( 单数 ) two-hour drive 两小时的车程 (2) 基数词 - 名词 ( 单数 )- 形容词 an 8-year-old boy 一个 8 岁的男孩 Ⅰ. 选择填空 1. More than two trees are planted in our neighbourhood every year. A.hundred B.hundreds C.hundreds of D.hundred of 2. Kobe's fans watched his final match and of them were men. A.Three millions; fourth five B.Millions of; four fifths C.Million of; four fifths D.Three million; fourth fifths 对接中考专练 语法专题训练 A B 3. — How old is your sister? — . We had a special party for her birthday last Sunday. A.Nine; nine B.Nine; ninth C.Ninth; nine D.Ninth; ninth 4. Each of us has to write a report every week. A.two-hundred-word B.two-hundreds-word C.two-hundreds-words D.two-hundred-words 5. More than of the children took part in the activities last week. A.two thirds B.thirds second C.second three D.two third 对接中考专练 语法专题训练 B A A Ⅱ. 根根据句子意思 , 用括号中所给单词的正确形式填空。 1 . [2019 · 徐州 ] How happy I am to celebrate my (fifteen) birthday tomorrow! 2. [2014 · 徐州 ] Jane would like to live on the (three) floor. 3. [ 2019 · 徐州二模 ] Last week, the Greens held a party to celebrate their mother's (sixty) birthday. 4. [2019 · 徐州质检 ] The young couple plan to have a (two) baby in the following year. 5. [2018 · 徐州一模 ] In 2020, the Palace Museum, which was completed in 1620, will celebrate its four (hundred) birthday. 对接中考专练 语法专题训练 fifteenth third sixtieth second hundredth 6. December is the (twelve) month of a year. 7. Three (four) of the students in our class like basketball. 8. Peter got a model ship from his uncle on his (ten) birthday. 9. In the (eight) picture, you can see many young trees. 10. The lady became very famous in her (forty). 11. Yesterday her brother had his (twenty)birthday at home. 12. People worked hard to carry out the economic objectives( 经济目标 ) of China's (thirteen) Five-Year Plan. 对接中考专练 语法专题训练 twelfth fourths tenth eighth forties twentieth thirteenth 13. May is a perfect time to have an outing. At this time every year, (thousand) of people will have a self-driving travel. 14. This is the (six) time for our school to hold the robot-making contest. 对接中考专练 语法专题训练 thousands sixth查看更多