急求,新概念第二册第七课练习
题目
急求,新概念第二册第七课练习
Exercise上面的项目
(像难点那样改写两种)
如:He took his coat off.改写成He took it off.
1 He gave all his books away.
2 She woke the children up early this morning.
4 They cut the king's head off.
5 Put your hat and coat on.
7 Help me to lift this table up.
8 Take your shoes off and put your slippers on.
11 They have pulled the old building down.
12 Make your mind up.
14 She threw all those old newspapers away.
答案
1 He gave them away.
2 She woke them early this morning.
4 They cut it off.
5 Put them on.
7 Helpme to lift it up.
8 Take them off and put them on.
11 They have pulled it down.
12 Make it up.
14 She threw them away.
ps:认清句子中的单复数就能做好; 对于8句,不能一起写,只能分着写!
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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