Ⅰ.单词拼写
1．Sometimes loud noises like these will ________ (吓唬) bears off.
2．There were likely a number of other genes that help the Bajau ________ (潜水).
3．________ (幸运地), he recovered his lost luggage and pocket with a lot of cash.
4．However, the two zookeepers didn't want to see the ________ (灭绝) of this precious species.
5．Factual reading would help shape a realistic and serious ________ (态度) to life.
