大脚和eui:If you don't feel well , you'll __take some medicine

来源：百度文库编辑：高考问答时间：2024/05/07 02:31:14

1need 2 have to
答案是2为什么不选1

Need 后面有动词时, 要加"to", 除非把动词去掉.
可以说
If you don't feel well , you'll need to take some medicine.
或
If you don't feel well , you'll need some medicine.

have to 是不得不,因为如果你不舒服了,那你就不得不吃些药.
need 是需要.
这里应该是不得不而不是需要.

事实上，need不选是因为语法错误
need:可以做1.情态动词（need do sth.），也可以做2.实义动词(need to do sth.)
情态动词不需要有时态的变化。我们没有见过will must的形式不是吗？因为此处有WILL，所以证明需要填need实义动词。
实义动词用法为：need to do sth. 但是此处后面没有TO
所以need不可选

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