Question

英语好的人请进~ 帮我分析一下啊语法，不要只是告诉我答案，谢谢~

1 Dare you swim _____ the river?
A across B cross C through D over
2 She is often mistaken ____ her twin sister.
A as B like C by D for
3 When you look up into the sky_____a clear night, you will see these stars.
A at B in C on D for
4 We offer him our congratulations ____ his passing the colleage entrance examinations.
A at B of C for D on
5 Is the toy made_____wood or plastic?
A by B on C of D in

Answer 1

1,A 你敢游泳过河吗？ 显然B是动词，舍掉。 A横穿过，C贯穿（一般是隧道），D从上方过去（像是飞机飞过河流）本题关键点在于介词的运用。
2,D 她常被误认为她的孪生姐姐。A作为,B像是，C由，出自（某人）本题的关键点在于
mistaken的用法
3,C 在一个晴朗的晚上你仰望天空，你将会看到这些星星。on a clear night 是对的。因为中间加了定语修饰，不适合用at，其他的不符句意。本题关键点是at/in/on night 区分。
4,D congratulations on固定词组，为某事庆祝on sth。本题关键是词组的掌握。
5,C be made from 用什么制成，看不见原材料。be made of 也是用什么制成，能看见原材料。be made by 有某人制成 be made in 在什么地方制成或生产。你看得见玩具的材料。本题关键点是几个词组的区分。