Ⅰ.根据首字母或汉语提示，用本单元所学的单词完成下列句子（ 每个1分，共10分）
1. If you know first a_______ methods, you can be calmer and more helpful in case of emergency.
2. The rescue team put up a t______ hospital on the playground of our high school to help the injured.
3. When Susan fell off her bike, her only i______ was a twisted ankle.
4. Problems with childcare is the biggest b______ to women succeeding at work now.
5. This is a c_______ and difficult task, and it may take us lots of time and energy to complete it.
6. I’m sick and tired of the _________（潮湿的）weather.
