1.是否定句之后通常用or代替and.2.祈使句＋and =if,而祈使句＋or = unles.3.有時 and與 or可換,如：life and (或or) death (在死)；有時and no與or互換.4.在選擇疑問句中,用or 不用and.5.在both 之后用and,在either之后用or.

and例句

1.Remember,keep a positive attitude and good things will happen.

記住：保持樂觀的心態，好事自然會發生。

2.The world breaks everyone, and afterward, many are stronger at the broken places.

生活總是讓我們遍體鱗傷，但到后來，那些受傷的地方會變得更堅強。

3.For what do we live, but to make sport for our neighbours, and laugh at them in our turn?

我們活著是為了什么？不就是給鄰居當笑柄，再反過來笑他們。

4.When life gets hard and you want to give up, remember that life is full of ups and downs, and without the downs, the ups would mean nothing.

當生活很艱難，你想要放棄的時候，請記住，生活充滿了起起落落，如果沒有低谷，那站在高處也失去了意義。

5.Good luck is when an opportunity comes along and you're prepared for it.

好運就是當機會來臨時，你早已做好了準備。

or例句

1.No matter where you go in life or how old you get, there's always something new to learn about. After all, life is full of surprises.

不管你生活在哪里，你有多少歲，總有新東西要學習，畢竟，生活總是充滿驚喜。

2.Remember, happiness doesn't depend upon who you are or what you have; it depends solely upon what you think.--Dale Carnegie

請記住，幸福不在于你是誰或者你擁有什么，而僅僅取決于你的心態！

3.If your skin becomes red, sore or very scaly, consult your doctor.

如果皮膚發紅、瘙癢或脫皮，要向醫生咨詢。

4.There is nothing sinister or conspiratorial about the export licensing system.

這種出口許可制度沒有任何陰險或者見不得人的東西。

5.Do you sweat a lot or flush a lot?

你常出汗或是臉上常發燙嗎？