1、第三节第三节 数词和量词数词和量词1.1.基数词、序数词、分数基数词、序数词、分数2.2.数词作定语和作表语的区别数词作定语和作表语的区别1.基数词、序数词、分数基数词、序数词、分数(1)基数词+hundred/thousand/million/billion，表示“几百”“几千”“几百万”“几十亿”hundreds/thousands/millions/billions+of，表示“数百”“数千”“数百万”“数十亿”(2)8个不规则的序数词：first，second，third，fifth，eighth，ninth，twelfth，twentieth。(3)分数的构成：分子是基数词，分母是序
2、数词。当分子大于1时，分母要用复数形式。如：one third two thirds 2数词作定语和作表语的区别数词作定语和作表语的区别They dug a five-metre-deep hole.(数词是由连字符合成的复合形容词，作定语，名词用单数)The hole is five metres deep.(数词作表语，名词的形式和前面的基数词一致)注意：数词为1时后面的名词用单数She is one year old now.()1.The doctor asked him to take the medicine _ a day and take a good rest.A.three
3、 time B.third time C.three times D.the third time()2.Three _ students in our grade will go for a trip this weekend.A.hundred B.hundred of C.hundreds of D.hundreds()3.Some people dont know Thursday is _ day of a week.A.five B.the five C.the fiveth D.the fifth考点精练CAD()4.He told me that he was staying
4、in _.A.Room 301 B.The Room 301 C.The 301 Room D.301 Room()5.My mum bought _ apples in the supermarket yesterday.A.one and half kilos B.one and a half kilos C.one and a half kilo D.one kilo and half()6.There are many visitors in this town every year._ of them are from Guangzhou.A.Five six B.Fifth six
5、 C.Five sixths D.Five sixthABC()7.The Peoples Republic of China was founded _.A.on October 1st,1949 B.in 1949,October 1st C.on the October 1st,1949 D.in October 1st,1949()8.She moved to the United States with her family _.A.in her twenty B.in her twenties C.in the twenty D.in her twentiethAB()9.I pl
6、an to invite many people to take part in my mothers _ birthday party tomorrow.A.fifty B.the fiftyth C.the fiftieth D.fiftieth()10.He said he had visited my home _,but no one was at home at that time.A.two B.second C.the second D.twiceDC第四节第四节 介介 词词易混介词辨析易混介词辨析1.in,with&byin+语言，意为“用(语言)”with+工具，意为“用(
7、工具)”by+方式，意为“用(方式、手段)”He can say it in English.He drew a picture with a pencil.I often relax myself by listening to music.2.except,except for,besides&but(1)except 和 except for 都意为“除之外”except 同一类别比较，except for 不同类别比较(2)besides 意为“除了之外还有”，起强调作用 but 意为“除了之外”，常与否定词no one，none，nothing和疑问词who，what，不定代词all
8、，everyone等连用3.by&beforeby“在之前；不迟于；到时(为止)”强调时间的“终止点”before“在以前”；强调时间的“起始点”4at，in，onat 后接时间点in 后接年、月、季节、世纪、早上、下午或晚上on 后接日期、星期、具体的某一天或具体的某一天的上午、下午或晚上5.in&after+一段时间的区别：in+时间段，表示“在后”after+时间点/一段时间，表示“在后”6.on,over,above&beneath,under,below(1)on,over,above 都意为“在上面”on 与表面接触over 在上方(不接触)，指正上方above 在上方(不接触)，
9、不一定是正上方(2)beneath,under,below 都意为“在下面”beneath 与表面接触，有“在底下紧挨着”的意思under 指在某物的正下方below 指在某物的下方，但不一定是正下方7across,through,past&cross,pass(1)across,through&past 都可作介词或副词，意为“穿过，经过”across 从一边到另一边，在事物表面穿过through 从内部通过past 从旁边经过(2)cross&pass 都是动词，意为“穿过，经过”cross 从一边到另一边，在事物表面穿过pass 从旁边经过8.between&among 都表示“在之间”
10、between 两者之间among 三者或三者以上之间9“Its+adj.+for sb.to do sth.”句型中的形容词修饰事物，如easy，hard，difficult，interesting，impossible等，后接介词for。“Its+adj.+of sb.to do sth.”句型中的形容词修饰人，如good，kind，nice，clever，foolish，right等，后接介词of。考点演练()1.This story happened _ a rainy night of October 20th in his home town.A.in B.on C.at D.to
11、()2.Did your football team play _ Class Two yesterday afternoon?Yes,we beat them 3_1.A.to;to B.against;and C.against;to D.to;with()3.Its bad for your health if you often get up late and go to school _ breakfast.A.with B.without C.by D.ofBCB()4.If he wants to go to her village,he has to walk _ a fore
12、st.A.past B.cross C.through D.across()5.My father went to Beijing yesterday and it is said that he will return _ two weeks.A.after B.in C.during D.for()6.He heard someone knock _ the door.But when he opened the door,no one was at the door.A.at B.in C.by D.forCAA()7.He sang a wonderful song _ the end
13、 of the show.A.in B.by C.on D.at()8.He was too busy and missed the football match _ our school and No.2 Middle School.A.between B.among C.both D.ofDA()9.If you think it is too hot,you can take _ your coat.A.down B.off C.up D.in()10.My mother asked me not to laugh _ my classmates when they are _ trouble.A.at;on B.to;in C.to;at D.at;inDB
