1.重点:学会比较亿以内数的大小。能把整万的数改写用“万”作单位的数。
2.难点:学会比较位数相同亿以内数的大小。能正确地省略万后面的尾数写出它的近似数。
3.关键:以比较万以内数为基础,把个级比较方法推广到万级,能正确比较亿以内数的大小。把生活中的某些镜头带到学生面前,由果到因,让学生体会“近似值”在社会生活中的实际应用。
Dear professor Jackson:
I am indeed very sorry that I missed the examination you gave on Moby-Dick last Wednesday. I feel badly about it and want you to know what happened.
On my way to class that day,I had a flat tire,and I had to go with the mechanic when he repaired it. It took me more than one hour to get it done. A copy of the bill is enclosed.
I sincerely hope you can accept my apologies and understand my situation. I would appreciate your allowing me to take a make up examination. I will #e to your office during your office hour on Monday to discuss this possibility with you. Once again,I''m sorry fro any inconvenience caused.
Sincerely yours,
Alice
Dear Mr.Smith,
I am indeed very sorry that I missed the examination on International Business English Writing you gave last Friday. I feel awful about it and want you to know what happened that day.
I suddenly fell sick early that morning and my parents had to send me to the hospital.Please find enclosed a copy of the medical bill.
I sincerely hope you can understand my situation and accept my apology. I would appreciate your allowing me to take a make-up examination. I will come to your office during your office hour on Monday to discuss this possibility with you. Once again, I apologize for any inconvenience caused.
Sincerelyyours,
Wang Hua
1.重点:学会比较亿以内数的大小。能把整万的数改写用万作单位的.数。
2.难点:学会比较位数相同亿以内数的大小。能正确地省略万后面的尾数写出它的近似数。
3.关键:以比较万以内数为基础,把个级比较方法推广到万级,能正确比较亿以内数的大小。把生活中的某些镜头带到学生面前,由果到因,让学生体会近似值在社会生活中的实际应用。
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