that

1. PRON You use that to refer back to an idea or situation expressed in a previous sentence or sentences. 那 (指前面句子提过的想法或情形)

They said you particularly wanted to talk to me. Why was that?

他们说你特别想和我谈谈。那是为什么？

"There's a party tonight."—"Is that why you're phoning?"

“今晚有聚会。”—“那就是你打电话的原因吗？”

2. DET That is also a determiner. 那

She's away; for that reason I'm cooking tonight. 她不在家，所以今晚我煮饭。

3. DET You use that to refer to someone or something already mentioned. 那 (指已提及的人或物)

The salespeople get between $50,000 and $60,000 a year but that amount can double with commission. 推销员每年的收入在5万到6万美元之间，但是加上佣金，那数额能翻倍。

4. DET When you have been talking about a particular period of time, you use that to indicate that you are still referring to the same period. You use expressions such as that morning or that afternoon to indicate that you are referring to an earlier period of the same day. 那 (指前文提到的同一时期)

The story was published in a Sunday newspaper later that week. 这个故事在那周晚些时候被刊登在一家星期日报纸上。

5. PRON You use that in expressions such as that of and that which to introduce more information about something already mentioned, instead of repeating the noun which refers to it. 那 (用于引入有关已提及的事物的更多信息，避免重复提及相关名词)[正式]

A recession like that of 1973-74 could put one in ten American companies into bankruptcy. 一场像1973到1974年那样的经济衰退会使1/10的美国公司破产。

6. PRON You use that in front of words or expressions which express agreement, responses, or reactions to what has just been said. 那 (用于对已说过的话表示同意或应答的词前)

"She said she'd met you in England."—"That's true."

“她说她在英格兰见过你。”—“没错。”

7. DET You use that when you are referring to someone or something which is a distance away from you in position or time, especially when you indicate or point to them. When there are two or more things near you, that refers to the more distant one. 那个 (指距离或时间上较远的人或事物)

Look at that guy. He's got red socks. 看那家伙，他穿着红袜子。

8. PRON That is also a pronoun. 那个

Leo, what's that you're writing?

利奥，你写的那是什么呀？

9. PRON You use that when you are identifying someone or asking about their identity. 那个 (用于识别或询问他人的身份)

That's my wife you were talking to. 刚才和你说话的是我妻子。

"Who's that with you?"—"A friend of mine."

“和你在一起的那个人是谁？”—“我的一位朋友。”

10. DET You can use that when you expect the person you are talking to to know what or who you are referring to, without needing to identify the particular person or thing fully. 那个 (不需明确指出，指代对方应该知道的人或物)[口语]

I really thought I was something when I wore that hat and my patent leather shoes. 当我戴上那顶帽子，穿着我的漆皮鞋的时候，我还真以为自己是个人物。

11. PRON That is also a pronoun. 那

That was a terrible case of blackmail in the paper today. 那是今天报纸里刊登的一宗可怕的勒索案。

12. ADV If something is not that bad, funny, or expensive for example, it is not as bad, funny, or expensive as it might be or as has been suggested. 那么[with brd-neg, ADV adj/adv]

Not even Gary, he said, was that stupid. 他说，就是加里也没那么笨。

13. ADV You can use that to emphasize the degree of a feeling or quality. 那样 (用于强调感情或品质的程度)[非正式] [ADV adj/adv]

I would have walked out, I was that angry. 我本要走出去的，我是那样的生气。

14. →see also those

15. PHRASE You use and all that or and that to refer generally to everything else which is associated with what you have just mentioned. 诸如此类[非正式]

I'm not a cook myself but I am interested in nutrition and all that. 我本人不是厨师，但我对营养之类的事感兴趣。

16. PHRASE You use at that after a statement which modifies or emphasizes what you have just said. 而且[强调]

Success never seems to come but through hard work, often physically demanding work at that. 成功不通过努力工作似乎是无法取得的，而且往往是很耗费体力的工作。

17. PHRASE You use that is or that is to say to indicate that you are about to express the same idea more clearly or precisely. 也就是说

I am a disappointing, though generally dutiful, student. That is, I do as I'm told. 我是个令人失望的学生，尽管一般来说我很听话，也就是说，我按别人说的做。

18. PHRASE You use that's it to indicate that nothing more needs to be done or that the end has been reached. 就这样

When he left the office, that was it, the workday was over. 他一离开办公室，工作日就这样结束了。

19. CONVENTION You use that's it to express agreement with or approval of what has just been said or done. 没错[套语]

"You got married, right?"—"Yeah, that's it."

“你结婚了，对吧？”—“是的，没错。”

20. PHRASE You use just like that to emphasize that something happens or is done immediately or in a very simple way, often without much thought or discussion. 就那样[非正式]

Just like that, I was in love. 就那样，我恋爱了。

21.  PHRASE You use that's that to say there is nothing more you can do or say about a particular matter. 就那样好了[口语]

"Well, if that's the way you want it," he replied, tears in his eyes, "I guess that's that."

“哦，如果你要那样的话，”他泪汪汪地回答道，“我想就那样好了。”

22.  like that→see like

23.  this and that→see this

24.  this, that, and the other→see this

PHRASE

1. CONJ You can use that after many verbs, adjectives, nouns, and expressions to introduce a clause in which you report what someone has said, or what they think or feel. 用于某些动词、形容词、名词和短语后,引导从句来引述某人的话语、思想或感觉

He called her up one day and said that he and his wife were coming to New York. 他有一天给她打电话,说他和他妻子要来纽约。

2. CONJ You use that after "it" and a linking verb and an adjective to comment on a situation or fact. 用于(it)、系动词或形容词后来评论某种情况或事实

It's interesting that you like him. 很有意思，你喜欢他。

3. PRON-REL You use that to introduce a clause which gives more information to help identify the person or thing you are talking about. 用于引导定语从句来帮助说明所谈及的人或物

...pills that will make the problem disappear. …会消除该症状的药丸。

4. CONJ You use that after expressions with "so" and "such" in order to introduce the result or effect of something. 用于带(so)和(such)的短语后，引入某事的结果或影响

She became so nervous that she shook violently. 她紧张得全身猛烈颤抖。