Question

问几道英语选择题，原因也请说明一下，谢谢

1.Since it is too late to change my mind now, I am ________ to carrying out the plan.
[A] obliged
[B] committed
[C] engaged
[D] resolved
2.When travelling, you are advised to take travellers’ checks, which provide a secure ________ to carrying your money in cash.
[A] substitute
[B] selection
[C] preference
[D] alternative
为什么不能是A?

Answer 1

1、D be obliged to do sth 有义务做sth 不得不做
be committed to 致力于 委任于
be engaged in 参与 从事 忙于
be resolved to do = be determined to do 决心做sth
翻译：既然我现在改变想法为之已晚，我决定坚决执行这个计划
2、D
辨析
substitute 作替代，代替 普通用词，范围比较广
alternative 虽然也有替代的意思，但是更强调交替，或者二者选一这种情况
根据题中 旅游时两种支付方式：by check 支票支付 in cash 现金支付
所以侧重两者之间的选择 注意alternative to carrying your money in cash中to是介词，连接另一种支付方式

Answer 2

1.D 这个查字典就好了
2.D A是动词啊，这了很明显需要的是一个形容词。

追问

substitute可以作名词的
n. 代用品；代替者