There be 句型的否定:否定形式只要在be动词后面加not即可,is not =isn’t are not= aren’t 但要注意的是句中如果出现some则改成any. 1.Thereisa knife in the kitchen. ——否定:Thereis nota knife in the kitchen. 2.Therearefive apples on the tree. —— 否定:T...
1.some一般用于肯定的陈述句中,any多用于否定句、疑问句或条件句中。两者都可修饰可数名词,也可修饰不可数名词。 例如:There is some water in the cup. Do you have any friends in Shanghai? If you have any help, let me know. 2.在疑问句中有时也用some,表示希望...
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