陕西省2015高考英语人教版一轮课时作业及解析：选修6 Unit 5
课时作业(三十) 选修6 Unit 5 The power of nature
Ⅰ.单词拼写
1．When the train began to move quickly，Helen excitedly________(挥手) at her friends on the platform.
2．Most researchers believe that，in theory，mobile phones are________(绝对的) safe.
3．My time is________(珍贵的)；I can only give you a few minutes.
4．When he came out of the water，he was________(颤抖) with cold.
5．She got into a________(惊慌) when she found she had l
