51.[误]I'm sorry. I have to get out the bus at next stop.
[正]I'm sorry. I have to get out of the bus at next stop.
[析]get in,与get out是两个相反的词组。get in为上车，而get out为下车，但语法家认为这里的in与out为副词，所以其 后不能接名词，我们可以讲We'd better get in.或We'd better get out.还有一组词组有关上下 车：get on／off(a train,a ship,a struck)get into／out of(a car,taxi…)
52.[误]Be careful. The temperature of the water is ninety degrees over zero.
[正]B ecareful. The temperature of the water is ninety degrees above zero.
53.[误]The Dead Sea is under the sea level.
[正]The Dead Sea is below the sea level.
54.[误]There is a big tree in the front of the house.
[正]There is a big tree in front of the house.
[析]in front of是在物体外部的前面，而in the front of是在物体内部的前面，如：The driver sits in the front of the bus.
55.[误]It took them two days to walk across the forest.
[正]It took them two days to walk through the forest.
[析]across作为介词有两个主要意思：①横过，如：I want to walk across the street.②对面， 如：There is a postoffice across the street,而through多用于三维空间中的穿越。across则多用于平面上的横 过。如：The little girl ran across the room to meet her mother.
56.[误]The sun sets toward the west.
[正]The sun sets in the west.
[析]towards也可用作toward，它主要表达朝向某方向运动，但不一定到达， 如：He ran toward(s) the mountain.而在表示方位east, west, north, south时，其前面要用in。要注意的是这4 个词可以用作副词，如：I went south.也可用作名词，如：I went to the south.也可用作形容词， 如：I went to the south part of China.
57.[误]Can I write the exam paper with ink?
[正]Can I write the exam paper with a pen?
[正]Can I write the exam paper in ink?
58.[误]I'm earlier today. I came here by his car.
[正]I'm earlier today.I came here in his car.
[析]在交通工具前加介词by，但不能再有任何指示代词或冠词，否则要改换相应的介词。by taxi=in a taxi, by train=in a train, by bicycle=on a bicycle, by ship=on a ship
59.[误]A lot of French wines are made of grape.
[正]Al ot of French wines are made from grape.
[析]made of是指由原材料到成品过程中原材料未发生质地的变化，而发生了某种变化则要用from,如：The desk was made of hard wood.
60.[误]This is a good dictionary in English grammar.
[正]This is a good dictionary on English grammar.
[析]关于某方面的书籍、报告等有两个介词，其中on表示某专业用书，about则为某方面的普通读物，如：This is a book about physics.即物理科普知识。