1. listen, hear, sound的辨析：
(1) listen表示有意識(shí)地聽，仔細(xì)地聽，但不一定聽到什么，強(qiáng)調(diào)聽得動(dòng)作，它可以單獨(dú)使用以引起對(duì)方的注意；listen為不及物動(dòng)詞，后接賓語，要跟to連用；
e.g. Listen to me very carefully.
? ? ? ? Listen, Mary is singing.
(2) hear可作及物動(dòng)詞，也可作不及物動(dòng)詞，意為“聽見；聽到”，既可以只有意識(shí)地聽到，也可以指無意識(shí)地聽到，強(qiáng)調(diào)聽的結(jié)果。hear作不及物動(dòng)詞時(shí)，常有以下結(jié)構(gòu)：hear of/about表示“聽別人說（間接聽到）”；hear from表示“收到某人的來信”；
e.g. Did you hear what I said?
? ? ? ? I can’t hear you.
? ? ? Suddenly I heard a strange noise.
? ? ? ? I heard of/about the famous star before.
? ? ? ? She hasn’t heard from her boyfriend.
(3) sound意為“聽起來”，為系動(dòng)詞，后接形容詞作表語或與like連用，強(qiáng)調(diào)聽的效果。
e.g. The idea/It sounds good.
? ? ? ? Sound like you have a good time.
2.strict的用法辨析：
(1) be strict with sb. “對(duì)某人嚴(yán)格要求”；
(2) be strict in sth. “在某方面嚴(yán)格要求”。
? e.g. My mother is strict with me in many ways.
? ? ? ? ? Tom’s Chinese teacher is strict in writing.
3. Why don’t you do sth.? 或Why not do
sth.? 意為“為什么不做某事呢？”，用來詢問意見或提出意見，看法。
e. g. Why don’t read a book?
? ? ? ? Why not read a book?
4. be made of 與be made from的區(qū)別：
(1)都表示“由……制成”，主語為制成品；
(2)be made of 表示制成成品后，仍能看出原材料,只發(fā)生了物理變化；
(3)be made of from表示制成的東西完全失去了原材料的外形和特征，發(fā)生了化學(xué)變化。
e.g. The kite is made of paper.
? ? ? ? The paper is made from wood.
? ? ? ? Butter is made from milk.
