that的用法：
注意：that常用作關(guān)系代詞，可指代某人，也可指代某物，指物時(shí)有的時(shí)候可用which替換that，指人時(shí)可用who替換。但在下列情況下，一般用that。
that指代某物事時(shí)：
1、先行詞為all, few, little, much, the one, something, anything, everything, nothing等時(shí)。
（1）We'll do all that we can to protect the endangered plants and animals.
我們將盡我們的最大努力來(lái)保護(hù)那些瀕危的動(dòng)植物。
�。�2）There is much that I wan to tell you.
我有很多想要告訴你的話。
�。�3）Is there anything that I can do for you?
有什么我可以幫你的嗎？
2、先行詞被all, every, no, some, any, (a)few, (a)little, much等限定詞修飾時(shí)。
�。�1）You can borrow any book that you want to read in our school library.
在我們圖書館，你可以借任何你想讀的書。
3、先行詞被序數(shù)詞或形容詞最高級(jí)修飾時(shí)。
�。�1）This is the most beautiful city that I've ever seen.
這是我見過(guò)的最漂亮的城市。
4、先行詞被the only, the very, the right, the last 等修飾時(shí)。
�。�1）This is the very factory that they visited last summer holiday.
這恰好是他們?nèi)ツ陞⒂^的那個(gè)工廠。
�。�2）This is the only painting in this style that we have.
這種風(fēng)格的畫我們僅有一幅。
5、先行詞是并列結(jié)構(gòu)，既有人又有物時(shí)。
He talked happily of the writer and his books that interested him.
6、先行詞前有the same修飾，表示和先行詞是同一物時(shí)。
�。�1）This is the same purse that I lost yesterday.
這就是我昨天丟的那個(gè)錢夾。
注：如果表示的是與先行詞同一類或相似的某物，則用the same…as….
�。�2）This is the same purse as I lost yesterday.
這個(gè)錢夾和我昨天丟的那個(gè)一樣。
7、先行詞為數(shù)詞時(shí)。
Look at the books on the bookshelf. You can see the two that you bought me for my birthday.
瞧書架上那些書。你可以看到我過(guò)生日時(shí)你買的那兩本。
8、如果which引導(dǎo)的定語(yǔ)從句中又含有一個(gè)定語(yǔ)從句，為避免重復(fù)，第二個(gè)定語(yǔ)從句用that。
They built a factory which produced things that had never been seen.
他們建了一工廠，生產(chǎn)以前從未見過(guò)的東西。