新概念第一册 57课 课文
题目
新概念第一册 57课 课文
答案
Lesson 57
An unusual day
很不平常的一天
Listen to the tape then answer this question.What is Mr.Sawyer doing tonight?
听录音,然后回答问题.索耶先生今晚正在做什么?
It is eight o'clock.The children go to school by car every day,but today,they are going to school on foot.
It is ten o'clock.Mrs.Sawyer usually stays at home in the morning,but this morning,she is going to the shops.
It is four o'clock.In the afternoon,Mrs.Sawyer usually drinks tea in the living room.But this after,she is drinking tea in the garden.
It is six o'clock.In the evening,the children usually do their homework,but this evening,they are not doing their homework.At the moment,they are playing in the garden.
It is nine o'clock.Mr.Sawyer usually reads his newspaper at night.But he's not reading his newspaper tonight.At the moment,he's reading an interesting book.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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