英语专业四级词汇与语法全真模拟练习三十二

会计考友

　　从今天开始我们要专攻助动词。好啦，现在大家先来回忆一下助动词有哪一些？
　　助动词包括：be (is, am, are, was, were, been, being)；have (has, had, having)；do (does, did)；shall (should), will (would)
　　" be + 动词不定式"可以表示下面几种意思:
" R8 T( z. N* {+ X　　1.命令或指示。例如：
　　No one is to enter the room without permission.
/ H0 ^  n' L2 c8 i& [　　2.计划或安排。例如：
　　A new bridge is to be built over the river soon.
# J) [, T- F3 ]( p7 W& h　　3.可能。例如：
8 X! S& g! j* c9 f0 J- \　　This kind of tree is to be found in that forest.
　　4.应该。例如：
# k; R4 M, X2 R+ E# ]8 ~8 h; I　　Such people are to be criticized.
　　5.表示后来发生的事，可以用来表示一种命运。例如：
* Y' ^, y3 ]0 C; }0 @/ a4 F　　They said good-bye, little knowing that they were never to meet again.
　　Task:这一期你的任务一:仔细观察下面三个句子,指出各个句子中的＂be+动词不定式＂是上面五种意义的那一种。
　　1.The books are not to be taken out of the reading-room.
8 Q6 @+ |8 T3 p% D* ]　　2.The expedition is to start in a week’s time.
8 Z$ ?6 q8 H7 ^* h* ~　　3.He was to regret the decision.