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This week, we answer several questions about how to use the verb "do."
本周，我们将回答几个关于动词do的用法的问题。
Cem in Turkey wants to know what "do" means when used before a present tense verb, such as in the statement, "You do bring up a good point."
来自土耳其的Cem想知道do用在动词原形前是什么意思，比如在陈述句中：You do bring up a good point.
Jean-Claude in Belgium wants to know why a Learning English writer put "does" before the verb "restrict" in a statement about Trump and student visas.
来自比利时的Jean-Claude想知道在一份关于特朗普和学生签证的声明中，为什么把does放在动词restrict之前。
Issa in Mali wants to know what it means when we use "do" in statements like, "I do have something."
来自马里的Issa想知道do在I do have something这样的陈述中是什么意思。
And Amauri in Brazil wants to know why we might use "do" in a statement like "I did spend too much time."
来自巴西的Amauri想知道为什么我们会在I did spend too much time这样的陈述中使用do这个词。
Hello Cem, Jean-Claude, Issa and Amauri!
Cem, Jean-Claude, Issa, Amauri，你们好！
All of your examples have one thing in common: They use the verb "do" in positive statements.
你们举的所有例子都有一个共同点：在肯定句中都使用了动词do。
You probably know that "do" can act as a main verb or an auxiliary verb, depending on how it is used.
你们可能知道do可以作为主动词，也可以作助动词。
Your examples use it as an auxiliary verb, also known as a helping verb.
在你们的例子中，do都作助动词。
When "do" is a helping verb, it helps us do many things, such as:
当do作助动词时，它可以帮助我们做很多事情，例如：
Form questions, as in, "Do you play football?"
例如问句：Do you play football?你踢足球吗？
Give short answers, as in, "Yes, I do."
比如简短回答：Yes, I do.是的，我踢。
Make negative statements, as in, "I do not play football."
比如，否定句：I do not play football.我不踢足球。
And give negative commands, as in, "Do not play football."
比如，发出否定的命令：Do not play football.不要踢足球。
We do not normally use the helping verb "do" in positive statements, such as, "I play football."
我们通常不会在肯定句中使用助动词do，例如：I play football.
However, we can use it in such statements to show emphasis.
然而，我们可以在这样的句子中使用do来表示强调。
For instance, suppose someone was not sure about whether or not you play football. You might make the answer clear by saying, "I do play football."
例如，假设某人不确定你是否踢足球。你可以这样回答：I do play football.
Or, suppose your friends were saying they play basketball. But you play a different sport: football.
或者，假设你的朋友说他们打篮球，但你玩的是另一种运动：足球。
You might say, "I don't play basketball. But I do play football."
你可以说：I don't play basketball. But I do play football.我不打篮球，但是我踢足球。
Use of "do" in the positive statement "I do play football" makes the point stronger or clearer.
在肯定句I do play football中使用do可以使观点更强烈、更清晰。
Similarly, in the examples you asked about, the helping verb "do" was used to give extra emphasis to the positive.
就像你们提问的例句，助动词do都用来强调肯定句。
In speaking, when we use "do" in this way, we say it a little louder than the words around it.
在口语中，当这样使用do时，我们说do的声音比它其他词要大一些。
Listen again: "I do play football." In writing, we sometimes italicize the word to show the emphasis.
再听一遍：I do play football. 在写作中，我们有时会用斜体的do来表示强调。
That's Ask a Teacher for this week.
以上就是本期名师答疑的全部内容。
I'm Alice Bryant.
我是爱丽丝·布莱恩特。
