2022年中考英语复习数词专项ppt课件.pptx

1、语法专项数词基数词1.基数词的基本规则（1）1-12各不同（2）13-19teen 结尾 fifteen（3）几十词尾ty forty（4）21-99非整十数要有连字符 21 twenty-one（5）百位数 648 six hundred and forty-eight2.基数词的复数形式（1）表不确指用复数：hundreds of thousands of（2）确指用单数：a few hundred two thousand（3）in ones fifties:“在某人50来岁的时候”表示不确切的年龄 He became a teacher in his fifties.3.时刻表示法0分

2、钟30，表示几点过了几分钟，用pastfive past seven half past eight 30分钟60，表示差几分到几点，用toa quarter to eight 简单顺读读法：5：31 five thirty-one 7：058：307：454.年代表示1）世纪公元6世纪the sixth/6th century the 1900s 20世纪2）年代In the 1960s,China is a very poor country.1.序数词可以用缩写形式来表示：first-1st second-2nd third-3rd fourth-4thsixth-6th twentie

3、th-20thtwenty-third-23rd表达日期写作：October 1st 读作：October the first序数词序数词序数词前有a或an，表示“再一，又一”Weve tried it three times,must we try it a fourth time?分数和百分数1.分数表达：基数词做分子，序数词做分母；分子大于1，分母用复数。one second two thirds2.百分数：基数词+percent表示。修饰名词时，后加of20 percent of the students two fifths of the men语法专项习题 1.Susan is g

4、oing to be an elder sister.Her parents are planning to have their_(two)child.2.Two_(three)of the students in our class have been to Beijing.3.Rose received a letter full of love from her parents on her_(sixteen)birthday.4.December is the_(twelve)month of the year.5.To finish the task,we have tried t

5、hree times,and after dinner,we will try a_(four)time.6.There were_(thousand)of people at the concert.7.Three_(five)of the land in that district _(be)covered with trees and grass 8.Many young people came to Zhongshan in_(20世纪80年代).9.Chinas population on the mainland reached 1.41178 billion according

6、to the_(seven)national population census(普查).1.second 2.thirds 3.sixteenth4.twelfth 5.fourth 6.thousands 7.fifths is 8.the1980s 9.seventh.翻译句子 1.在国庆节,成千上万的人去天安门广场看升国旗。(go up)2.这座城市是第二个加入这个国家的。(join)3她三分之二的钱花在了买书上。4.我爷爷在他七十多岁的时候开始对摄影感兴趣。(become interested in)5.老舍是中国20世纪最伟大的作家之一。(one of.)6.上周,我们学校的五百名

7、学生参加了运动会。7.这座城市有一座160米高的塔。8.这所医院超过百分之六十的医生是女性。9.昨天我们为他9岁生日举办了一个特殊的聚会。10.红十字会为数以百万计洪灾中的人们提供食物和药品。(provide)1.On National Day,thousands of people go to Tiananmen Square and watch the national flag go up.2.This city was the second to join the nation.3.Two thirds of her money was spent on books.4.My gran

8、dpa became interested in photography in his seventies.5.Lao She was one of the greatest writers of the twentieth century in China.6.Last week,five hundred students took part in the sports meeting in our school.7.There is a 160-meter-high tower in this city.8.Over sixty percent of the doctors were wo

9、men in this hospital.9.We had a special party for his ninth birthday yesterday.10.The Red Cross provided food and medicine for millions of people in flooded area.I have invented robots which improve the work cars.My love of making things 1._(begin)when I was a kid.I really became 2._(excite)about in

10、venting after I learned about Thomas Edison.One day in the fourth grade,our teacher gave us a project in class.We had to write to a company and learn about the 3._(product).I thought and thought.Finally I chose the Thomas A.Edison Company.Soon after,the company sent me a book about the life of Thoma

11、s Edison.How I enjoyed4._(read)and re-reading about his 5._(invent)!I like the recorded sound and the electric light most.The inventions were clearly printed on my brain.My dad noticed my interest in inventing and 6.(encourage)_me.He showed me how to turn my ideas into plans and then into new things

12、.Once,I surprised my dad with a model plane I made.Later,we found a similar model plane in a store.l learned that different inventors often invented similar things.It is not 7._(usual)for this to happen.I also learned that not all great ideas worked.8._(fail)is a common part of the inventing.As my f

13、ather and I worked together,I began to realize that my dad was quite an 9._(invent)himself.He was always looking for a better way to do a simple job.His guiding hands,together with my interest in inventing,led me 1o._(become)an engineer and an inventor.Of course,I also thank Thomas Edison.He is my hero.1.began 2.excited 3.products 4.reading5.inventions 6.encouraged 7.unusual 8.Failure9.inventor 10.to become See You!