?1. 連接兩個相同的比較級，表示“越來越……”。如：The car runsfaster and faster. 汽車開得越來越快。Our country is becomingmore and more beautiful. 我們國家變得越來越美麗。
2. 連接兩個相同的動詞，表示動作的反復或連續(xù)。如：We ran andran. 我們跑呀跑呀。The boys laughed and laughed. 這些孩子笑個不停。
3. 連接兩個相同的名詞，表示“ 許多”或“有各種各樣的” (即有好的也有壞的)。如：We waited for hours and hours. 我們不知等了多少個小時。There are books and books. 有各種各樣的書 (即書有好壞之分)。
4. 在口語中用在 come, go, run, stay, stop, try 等之后表示目的 (and 在此相當于不定式符號 to)。如：Come and have a drink. 來喝一杯。來喝一杯。Try and finish the work in a week. 設法在一周之內完成這項工作。We ought to stop and think. 我們應該停下來想一想。以上動詞除 try 不能有形式變化之外，其它動詞都可有多種形式。如：正：He came and had a drink with me. 他來跟我喝了一杯。誤：He tried and finished the work in a week. 在 come, go 之后的and有時可以省略 (尤其在美國英語中)。如：
I’llcome (and) see you later. 我晚些時候再來看你。
5. 用在祈使句后，表示結果，意為“那么” (暗示一種條件)。如：Workhard and you’ll succeed. (=If you work hard, you’ll succeed. )努力干吧，你會成功的。
6. 用在“很”，“挺”。如：good andfast 很快 nice and warm 挺暖和
7. 在主從復合句中，不要在主句前誤加 and。如：要是他這樣說，那他就是個騙子。正：If he said so, he is a liar. 誤：If he said so, and he is a liar. If he said
8. 用 and 連接兩個名詞或代詞作主語時，其謂語動詞一般要用復數，但若是被連接的兩個名詞指的是同一個人或同一件東西，則謂語仍要用單數。如：A cart and horse was seen coming to us. 看見一輛馬車向我們這邊過來。The teacher and poet lives in the country. 這位老師詩人住在鄉(xiāng)下。連接兩個加數相加時，謂語用單、復數均可。如：
Five and five is[are] ten. 五加五得十。
9. 某些用 and連接的兩個詞，與漢語順序相反，不要按漢語詞序顛倒過來。如：rich and poor 貧富 land and water 水陸 right andleft 左右 north and south 南北 food and drink 飲食 foodand clothing 衣食
10. 在否定詞之后通常用 or 代之，比較。如：(1) He spoke loudly and clearly. 他說話聲音宏亮且清晰。(2) He didn’t speak loudly or clearly. 他說話聲音不大且不清晰。若要連接兩個同為否定形式的短語或句子，則仍用 and。如：He hasno brothers and no sisters (= He has no brothers or sisters). 他沒有兄弟姐妹。He hasno brother He can’t write and I can’t read. 他不會寫，而我不會讀。
11. 在下列各類有關主從復合句以及非謂語動詞的測試題中，注意有無 and 的差別。如：

(1) ①It __C__ fine, we went out for a walk.
②It __A__ fine, and we went out for a walk.???????
?A. was???????????????????? B. is??????????????????????? C. being????????????????? D. were
(2) ①There I saw five people, the teacher __A__.???
②There I saw five people, and the teacher __B__.???????
A. included??????????????? B. was included??????? C. including???????????? D. was including
(3) ①He bought a lot of books, most of __D__ are about agriculture.??? ②He bought a lot of books, and most of __A__ are about agriculture.
A. them???????????????????? B. books????????????????? C. his???????????????????? D. which