prepare + for （或 against ） 相关知识如下：一 . prepare 作“准备；预备；筹备；制作；配制”解时，可用于以下场合：
1. prepare + 名词或代词。例如：
He has prepared his lessons.
他已备好课了。
After arriving home， she began to make a fire and prepare supper.
到家以后，她开始生炉子，准备晚饭。
The chemist is preparing a medicine.
药剂师正在配药。
Corn is a very useful plant which can be prepared in many different ways.
玉米是一种非常有用的作物，可用许多不同的方法将其制作成食品。
2. prepare + 双宾语（间接宾语和直接宾语）。例如：
Mother is preparing us a meal. = Mother is preparing a meal for us.
母亲正在为我们做饭。
The secretary has prepared the president a long report. = The secretary has prepared a long report for the president.
秘书已为董事长准备好了一份长篇报告稿。
3. prepare + 动词不定式短语。例如：
They are busy preparing to go on vacation.
他们正忙着准备去度假。
After the discussion they prepared to write an article to air their views.
经过讨论，他们准备写一篇文章来提出自己的看法。
4. prepare + for （或 against ）引起的短语。例如：
The students are busy preparing for the mid-term examination.
学生们正忙于为期中考试作准备。
The peasants are preparing against the drought.
农民们正在为抗干旱作准备。
注意： prepare against 用于为灾害、意外不幸或不愉快事件作准备。
二 . prepare 作“使（人）作好准备；叫（人）作准备”解时，可用于下述场合：
1. prepare + sb + for sth .例如：
He was preparing himself for the marathon race then.
他当时正在为参加马拉松比赛而作准备。
The teacher prepared his students for the college entrance examination.
老师指导他的学生为大学入学考试作准备。
2. prepare + sb + 动词不定式短语。例如：
He prepared himself to take out a license for a driver.
他为取得汽车驾驶执照作了准备。
The nurse is preparing the child to go to hospital.
保姆在为孩子住院作准备。
三 . 过去分词 prepared 用于系表结构，意思为“为……做好准备；打算”，常用于以下句式：
1. be prepared + for （或 against ）引起的短语。例如：
They were prepared for the worst.
他们已准备好应付最坏的情况。
I knew there were problems， but I was not prepared for this.
我知道有些问题，但却未防范这一点！
2. be prepared + 不定式短语。例如：
They were prepared to go to work in the countryside.
他们准备到农村去工作。
I am not prepared to listen to all your weak excuses.
我不愿听你那些不成借口的借口。
They were prepared to be friendly.
他们打算和好。
温馨提示：答案为网友推荐，仅供参考