英语it that one 指代某一东西时区别是什么
题目
英语it that one 指代某一东西时区别是什么
答案
1.it 指上面出现的东西 I found something on the desk.It was a pen.(it指something)
2.that特指单数名词,但并非上文出现的那个
The weather in Nanjing is hotter than that in Beijing.(that= the weather但并非前面的weather)
3.one = a + 前面出现的名词
There are so many interesting books in the store.I want to buy one (one = a 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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