高三英语教案 时隐时现的介词
介词是短文改错中的一大考点，而介词又是难掌握的一种词类。大多数介词都有多种用法，如介词at;不同的介词还可能有相似的用法如in the morning ,on Monday morning 等，而且介词的位置，介词和副词的区别，以及介词与连词的连用等都是学习中的难点也是高考中考查的热点。
●难点磁场
1.(★★★★★) Evening came down. We spent the night in a hotel at the top of the mountain.
83. ________ (NMET 2002)
2.(★★★★) I won’t be able to come in this time. 87. ________ (2000春季)
3.(★★★★★)We practise for three times every week and often watch football match on TV together. 87. ________
4.(★★★★★) Newly-published novels are always in great demand, and some books, for example, books for history. 88. ________
5.（★★★★★） The wild beast took no notice of her and went into the bedroom which he fell asleep on the carpet. 84. ________ (2002年模拟题)
●案例探究
1.I was so tired that I fell asleep at the moment my head touched the pillow.
(NMET 2002)
解析：此题为五星级题。去掉at。 the moment 在此相当于as soon as ,the instant, immediately。译为“一……就……”,为连词; at the moment 是介词短语，意思是“此时此刻”。
e.g. At the moment I missed my teacher very much.
He recognized me the moment \ the instant\ immediately\ as soon as he saw me.
2.We must keep in mind that we play for the team instead ourselves. (NMET 1998)
解析：此题为四星级题。在ourselves前加of,此题意在考查instead 与instead of 的区别。instead 后加of ,译为“而不是”；instead 是副词，应放在句后译为“而是”。
e.g.He is going to Shanghai instead of Beijing.
He is not going to Beijing. He is going to Shanghai instead.
3.…but we do not seem to get much time to talk about together.