辨析：at first与first of allat first，起初；当初，相当于at the beginning，与后来发生的事相对照，其反义词组为at last（最后，终于）first of all，首先，第一，相当于first，表示顺序，是时间上或一系列行动的开始，后面往往接next，then等At first I didn't want to go, but Isoon changed my mind. 起初我不想去，可是不久我改变了主意。First of all, open the windows, then turn off the gas, and if necessary, call an ambulance. 首先，打开窗子，然后关掉煤气，如果需要，叫一辆救护车。

辨析：however与but二者都有“然而，但是”的意思，其区别如下：however,然而；不过,比较正式，可以放在分句之首、之中或之尾；其前面或后面要用逗号隔开，如在句中，其前后都要加逗号。

辨析：real与truereal,强调客观存在，并非想象的或虚构的，即某物外表与实质之间有一致性Christmas Father isn't a real person.圣诞老人不是真实的人物.true,强调事实与实际情况相符，并非杜撰、捏造的，符合一定标准、一定模式Is it true that he is dead? 他死了，是真的吗？

辨析：be made of与 be made frombe made of,看得出原材料The table is made of wood. 这张桌子是由木头做成的be made from,看不出原材料The wine is made from grain. 这酒是用粮食酿造的。

【中考﹒链接】 Books are made paper while paper is mainly made_____ wood. A.of;of B.from; from C.of; from D. from; of

辨析：not……anylonger/no longer 与 not …any more/no more not……any longer/no longer:多指时间上不再延续，与之搭配的词多为延续性动词。not …any more/no more 侧重程度或在数量上不再增加I don’t want to stay here any more. The poor boy won’t come any more./the poorboy will no more come.

辨析：see sb doing sth与see sb do sthsee sb doing sth,看到某人正在做某事I saw her cross the road.(穿过了马路）see sb do sth,看到某人做了某事，指看到动作发生的全过程或看到动作经常发生I saw her crossing the road(正在过马路）与此相同的词（组）：watch,hear,notice,observe,lookat,listen to

辨析：the next day与next daythe next day,第二天，常与一般过去式连用The next day, all the books were sold out.next day,明天，常与一般将来时连用Next day, I will go shopping with him.

辨析：dress，wear,put on,have on 与indress，给（某人）穿衣服，表动作后接sb./oneself作宾语she dressed himself quickly.wear，穿着，表状态，后接衣服、首饰、鞋帽等名词we wear uniforms at school.put on，穿上，表动作，后接衣服,鞋帽等名词please put on your hat.have on，穿着，表状态，接衣服类名词，宾语是代词时，放中间，不用进行时I have on a pair of jeans today.in，穿着，表状态，后接表颜色或衣服的名词he’s always in green shoes.助记：穿戴动作put on，状态wear已穿上;dress接人作宾语,in 后颜色或衣裳