1. Unit Four Lesson Two Maths in English

3. 1. one 2. two 3. three 4. four 5. five 6. six 7. seven 8. eight 9. nine 10. ten 11. eleven 12. twelve 1. first 2. second 3. third 4. fourth 5. fifth 6. sixth 7. seventh 8. eighth 9. ninth 10. tenth 11. eleventh 12. twelfth

4. 13. thirteen 14. fourteen 15. fifteen 16. sixteen 17. seventeen 18. eighteen 19. nineteen 13. thirteenth 14. fourteenth 15. fifteenth 16. sixteenth 17. seventeenth 18. eighteenth 19. nineteenth

5. 20. twenty 30. thirty 40. forty 50. fifty 60. sixty 70. seventy 80. eighty 90. ninety 20. twentieth 30. thirtieth 40. fortieth 50. fiftieth 60. sixtieth 70. seventieth 80. eightieth 90. ninetieth

6. 21. twenty-one 32. thirty-two 43. forty-three 54. fifty-four 65. sixty-five 76. seventy-six 87. eighty-seven 99. ninety-nine 100.one hundred 101.one hundred and one 21. twenty-first 32. thirty-second 43. forty-third 54. fifty-fourth 65. sixty-fifth 76. seventy-sixth 87. eighty-seventh 99. ninety-ninth 100.one hundredth 101.one hundred and first

7. + - × ÷ = plus minus times divided by equal /plVs/ / ’ maInEs/ /taImz/ /dI ’ vaIdId/ / ’ i:kwEl/

8. 加减乘除的不同表达方法 plus 加法运算 4 + 3 = 7 4 plus 3 equals 7. is

9. 10 - 6 = 4 10 minus 6 is/equals 4. minus 减法运算

10. 3 × 5 = 15 3 times 5 is/equals 15. times 乘法运算

11. 32 ÷ 4 = 8 32 divided by 4 is/equals 8. divided by 除法运算

12. 加减乘除的不同表达方式： 1) plus 加法运算 4 + 3 = 7 4 plus 3 equals 7. 2) minus 减法运算 10- 6 = 4 10 minus 6 equals 4. 3) times 乘法运算 3×5 = 15 3 times 5 equals 15. 4) divide 除法运算 32÷4=8 32 divided by 4 equals 8.

13. Put the following into English ： 1)15 + 8 = 23 2)18- 6 = 12 3) 4×9 = 36 4)40÷4 = 10 15 plus 8 equals 23. 18 minus 6 equals 12. 4 times 9 equals 36. 40 divided by 4 equals 10.

14. 16 + 9 = 47 - 9 = 7 ×8 = 54÷6 = 28 + 22= 75 - 45= 12 ×5= 88÷11= Model: A : How much is 16 plus 9 ? B : 16 plus 9 equals 25.

15. Try to get 24 from the four numbers : 5-3=2 2+1=3 3 × 8=24

16. 7+5=12 10-8=2 12 × 2=24

17. 6-4=2 2 × 7=14 14+10=24

18. 9-4=5 5 × 5=25 25-1=24

19. 3 × 8=24 7-6=1 7+1=8

20. 3 × 8=24 10-7=3 9 ÷ 3=3

21. Listening 1.11+14=25 2.17-5=12 3. 6 × 9=54 4. 100 ÷ 25=4 5. 48+52=100 6. 98-13=85 7. 5×40=200 Model: A:How much is 11 plus 14? B:11 plus 14 equals 25.

22. Workbook p 63 Read the following sums in English. 1.16+9=25 Sixteen plus nine equals twenty-five. 2.47-9=38 3.7 × 8=56 4.54 ÷ 6=9 5.28+22=50 6.75-45=30 7.12 × 5=60 8.88 ÷ 11=8 Forty-seven minus 9 equals thirty-eight. Seven times eight equals fifty-six. Fifty-four divided by six equals nine. Twenty-eight plus twenty-two equals fifty. Seventy-five minus forty-five equals thirty. Twelve times 5 equals sixty. Eighty-eight divided by eleven equals eight.

23. Homework 1.Put the following into English: 3+5=8 16-4=12 4 × 3=12 40 ÷ 4=10 7 ×11=77 72÷6=12 2. 完成补充练习 3. 听、读本课词汇及课文 5 遍。

24. 3+5=8 16-4=12 4×3=12 40÷4=10 7×11=77 72÷6=12 Three plus five equals eight. Sixteen minus four equals twelve. Four times three equals twelve. Forty divided by four equals ten. Seven times eleven equals seventy-seven. Seventy-two divided by six equals twelve.

25. Questions: 1.Where are the students ? 2.Who is the boy standing in the middle of the classroom ? 3.What are they doing now ? They are in the classroom. The monitor. They are having a maths contest.

26. Student A Student B 10×2= 20 10 km/h A can skateboard twice as fast as B.

27. MaryJohn 12-2=10 She was twice John’s age 2 years ago. (12-2) ÷2=52 years ago 127This year