Unit 2 Amazing numbers 课时3 语法（课时学案）-【宝典训练】2025-2026学年新教材八年级上册英语高效课堂（沪教版2024）

宝典训练)英语·八年级·上册（泸教版） 课时3语法 课时精讲 语法精讲。 本单元重点介绍基数词、序数词和简单的数字运算。 ●基数词和序数词 1.基数词表数量，后接可数名词；序数词表顺序，前面须加t,但当序数词前面有形容词性物主代词 或所有格修饰时，不加the。 如：three days the third day Tom's third birthday 2.基数词变序数词的规律是在基数词后加-h,有些有特殊变化，分别是： one two three four five six seven eight nine ten first second third fourth fifth sixth seventh eighth ninth tenth twelve twenty twenty-one twenty-two twenty-three thirty forty ninety hundred twelfth twentieth twenty-first twenty-second twenty-third thirtieth fortieth ninetieth hundredth *加粗部分为易错数字，注意写法。 (口诀：一、二、三特殊记，词尾字母t、d、d;八去t,九减e,f换ve;遇到整十数，y变ie;遇到几十几，只 变个位数。) 3.编码时用基数词和序数词都可以，要注意写法的不同。 Page One the first page World War I the First World War Part Two the second part ●基数词的用法 1.表确切的数据：数词+hundred/thousand/million/billion+名词复数 如：六百本书six hundred books;几百万人several million people 2.表大概的数目：hundreds/thousands/,millions/billions of+名词复数 如：数百本书hundreds of books 3.次数、倍数的表达，如：once,twice,three times,many times 目序数词的用法 1.序数词的前面通常要加定冠词the;但当序数词前有形容词性物主代词或名词所有格修饰时，不用 加定冠词the。 如：Tom lives on the sixth floor.汤姆住在六楼。 Tom is her second child.汤姆是她的第二个孩子。 2.分数的表达：分子用基数词，分母用序数词，分子大于1时，分母上的序数词用复数。 one fifth,two thirds,a half=one second,a quarter one fourth ●>40《● Unit 2 Amazing numbers 3.表示编号时，可用“the+序数词+名词”或“名词+基数词”（注意：在“名词+基数词”结构中，名词 和基数词的首字母通常大写)。 如：Let's study the fourth lesson.=Let's study Lesson Four.让我们学习第4课。 Today is the ninth of May..今天是5月9号。 四数字运算的表达 +plus;Add...and... -minus;Subtract...from.. x times/multiplied by;Multiply...by... divided by;Divide...by... 如：9+3=12 9-3=6 Add 9 and 3,and you can get 12. Subtract 3 from 9,and you can get 6. =9 plus 3 is/equals 12. =9 minus 3 is/equals 6. 9×3=27 9÷3=3 Multiply 9 by 3,and you can get 27. Divide 9 by 3,and you can get 3. =9 times/multiplied by 3 is/equals 27. =9 divided by 3 is/equals 3. ⑤惯用语 at first起初 first of all首先 first name名字 second-hand二手的 of the two/,three在两/三个当中 in twos and threes三三两两 in one's thirties在某人三十几岁的时候 in the21 st century在21世纪 a second/third..再一…；又一… in the1970s在二十世纪七十年代 语境微练， ”十十十w十十十十十十十十 )1.（2024·牡丹江)There are solar terms(节气)in a year..Lichun is the first one. A.twenty-four B.twenty-fourth C.the twenty-fourth )2.(2024·达州)一Why is Jenny so happy? -Because today is her wedding anniversary. A.fifth B.the fifth C.five )3.(2024·东营改编)Iam child in my family.I have an elder brother and a younger sister. A.one B.the first C.the second )4.(2024·凉山)-Look at the triangle on the right.IfAC=3, BC=4,how long is AB? -It's A.five B.seven C.twelve )5.（2024·绥化)in China,a number of birthday persons cakes with candles.The number of candles the person's age. A.has;is B.eats;are C.eat;is ●>41《● 宝典训练英语·八年级·上册（泸教版） 时过关 ●用括号内所给词的适当形式填空。 1.It's said that about two three)of the earth is covered with water. 2.-Where is Class Five? —-It is the (five)classroom on the left. 3.We planted (hundred)of trees last year. 4. (ten)of thousands of students took the college entrance exam on time on the morning of June 7th in South China,though it rained heavily. 5.To finish the task,we've tried three times,and after dinner we'll try a (four)time. 6.-How old is your daughter? -Nine.We had a special party for her (nine)birthday yesterday. 7.Unit Six is easy but the seven)unit is difficult. 8.This tall building has twelve floors.And Tony lives on the (twelve)floor. 9.Linda's mother looks young,but actually she is in her (sixty). 10.-When did you start to collect stamps? -I got my (one)stamp when I was seven years old. 号用be动词的正确形式填空。 1.A large amount of money spent on shopping last year. 2.There an amount of water in the tank. 3.A number of students playing now. 4.The number of the boy students in our class very small. 5.9 minus 3 6. 目语法填空。 Fibonacci,an 1. Italy),brought the number zero,along with the rest of Arabic numbers, back from his travels to northern Africa.However,the history of zero 2. (go)far deeper into history.There are at least two discoveries (or 3. (invent)of zero.It's said that zero came from a place of the Middle East.It first 4.(get)to Babylon between 400 BC and 300 BC. Before it developed in India,it went through northern Africa,5. then crossed from Italy to Europe. At first,zero worked 6.a way to tell 1 from 10 or 100 to give 7. example of using Arabic numbers.But that was not a full zero.A full zero was a number by 8.(it).It was the average (of-1 and 1.It began to be a number in India in the 9.(five)century AD.The second appearance of zero happened in Mayan culture,probably in the first few centuries AD.An even 10. early)appearance of zero was used to mean an empty number about 4,000 to 5,000 years ago. ●>42《。《高效课觉宝典川练》·英语·八年级上册（护教版》 3.prize title奖项勋章 12.To realize 4.(1)spend one's life doing...win awards for... 就课时过关月 inspire future generations set a new world record -、l.golden/gold 2.unwise 3.promised make great contributions to... 4.realize 5.thought 6.correctly (2)在…领域取得突破被视为… 7.hesitation 8.wonderful 9.replied 使数百万人受益献身于…作为榜样 10.challenging 二、l.a Chinese scientist 二、1.realize 2.rest 3.quantity/amount 2.is best known for which changed 4.double 5.chessboard 6.wise 3.received was called 7.promised 8.replied 9.hesitation 三、spent his whole life such as 10.ordered changed the way people lived had been used 三、1-5 BACDA 6-10 BCBDA awards was called 课时2阅读 四、 Xu Fengcan was born in October,1999 in Zhejiang. 〔课时精进月 She has showed great interest in space since she was a little 1.(1)is/was (2)are/were girl.She joined the army in 2017 and trained really hard. 2.(1)is (2)If you know the answer Because of her wonderful performance,she got the chance 3.(1)Wouldn't you like (2)instead and became the first female pilot for a solo flight in the PLA 4.(1)There isn't enough milk in the fridge. in2021. (2)The room is big enough for ten people. As far as I'm concerned,she is really perseverant and ! (3)He didn't run fast enough to win the race. not afraid of difficulties.Therefore,as students,we should 〔课时过关月 learn from her and make contributions to our country. 一、l.study hard enough 课时6复习 2.sitting under the tree 一、1-5 BBDBA6-10 DBDAC 3.isn't light enough 二、第一节1一5 CDACA 第二节1一5 ACEBD 4.If you practice every day can improve 第三节1一5 AFBDE 5.without hesitation 三、l.carrying 2.with 3.others 、1.lived 2.Playing 3.to 4.a 5.himself 6.as 4.to give 5.f 6.third 7.worried 8.to help 9.However 7.the 8.Finally 9.what 10.left 10.However Unit 2 Amazing numbers 三、第一节1一5 DCBCD 第二节1一5 AEFBC 课时3语法 课时1词汇 〔课时精进]月 〔课时精讲] 五、1-5 AACAC 1.(1)wise (2)unwise (3)wisely 〔课时过关月 2.(1)to (2)challenge (3)challenging 一、l.thirds 2.fifth 3.hundreds 3.(1)He promised to take us to the zoo. 4.Tens 5.fourth 6.ninth (2)It's important to keep a promise. 7.seventh 8.twelfth 9.sixties 4.(1)double (2)doubled 10.first 5.(1)a small number of students 二、l.was2.is3.are4.is5.is (2)amount/quantity 三、l.Italian 3.inventions 6.(1)are(2)is 2.goes 4.got 5.and 6.as 7.(1)golden (2)golden (3)gold 7.an 8.itself 9.fifth 8.(1)Can you reply to me before 5 p.m. 10.earlier (2)Thanks for your quick reply! 9.(1)without (2)hesitated 课时4听说 10.(1)wonder/wondered (2)wonders (3)wonderful 〔听说测试月 11.(1)Please put the books in order 一、略 (2)He ordered a cup of coffee. 1.They are talking about making an appointment. (3)I ran fast in order to catch the bus. 2.She will go to see the doctor at 3:30 p.m. 2