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Hello!
大家好!
This week on Ask a Teacher, we answer a question from Teacher Sahraoui.
本周《名师答疑》，我们回答萨哈鲁伊老师的问题。
My student answered a question I asked in a written test as follows: Yes, consumers do adopt new habits.
我的学生在笔试中对一个问题的回答是这样的：是的，消费者确实养成了新习惯。
Shall I consider the answer grammatically incorrect because of the use of auxiliary do, even though the rest of the sentence is ok?
虽然句子的其余部分是正确的，但我能否因为助动词do的用法，而判定这个答案在语法上是错误的？
Thanks for answering.
谢谢你的回复。
Thanks for writing, Sahraoui.
谢谢你的来信，萨哈鲁伊。
Your question points out an important purpose for “do” in statements.
你的问题指出了do在陈述句中的一个重要用途。
We know that “do” does many things in English.
我们知道，do在英语中有很多用法。
It can serve as an auxiliary verb in negative statements.
它可以在否定句中充当助动词。
For example: I don’t have any money.
例如：我没有钱。
It can also serve as an auxiliary verb in questions: Does Brent have to work on weekends?
还可以在疑问句中充当助动词：布伦特周末必须上班吗？
What do you think?
你觉得怎么样？
Or it can provide a short answer to a yes/no question.
或者，do也可以用来简短地回答是非问句。
Yes, I do.
是的。
No, I don’t.
不是的。
In addition to all that, it can make imperatives, or commands, more polite.
除此之外，do还可以使发出命令的句子更有礼貌。
Do come in.
请进。
“Do” can also be used to make sentences clearer and shorter.
do也可以使句子更清楚、更简短。
Bill likes to swim, and so does Betty.
比尔喜欢游泳，贝蒂也喜欢。
You asked if the sentence your student wrote is grammatically incorrect because of the use of “do.”
你问学生写的句子是否因为do的使用而在语法上有误。
Well, there is one function of “do,” which we have not yet discussed: emphasis.
其实do还有一个功能，我们刚才还没讲到：强调。
“Do” is one way users of English bring attention to a whole or part of a message.
英语使用者可以用do将人们的注意力引向整个或部分信息。
A whole sentence can be emphaszed by adding “do.”
加上do可以强调一个完整的句子。
For example: It does taste good!
例如：它的味道确实很好！
We did enjoy the play.
我们确实很喜欢这出戏。
I do want to learn.
我确实想学。
The sentence you ask about is grammatically correct.
你问的句子在语法上是正确的。
The use of “do” shows emphasis.
do的用法表示强调。
I’m not sure if this is what your student meant when he wrote “do.”
我不确定你的学生写do是不是想表达强调的意思。
He might need a little more help with answering questions.
有可能他对于回答问题还需要一些指导。
But the sentence is grammatically correct.
但这句话在语法上是正确的。
Please let us know if this explanation has helped you, Sahraoui.
请让我们知道这个解释是否对你有帮助，萨哈鲁伊。
And that’s Ask a Teacher.
以上就是《名师答疑》。
I’m Gena Bennett.
我是吉娜·班内特。
