第一节：单词拼写（共10题，每题0.5分，共5分）
He is intelligent but he is lack of __________. (抱负)
Doing exercises is b_________ to both the physical and mental health.
The poor child was a__________ by his mother the whole night in hospital.
We should show _________(同情心) to the survivors in the earthquake.
The accident happened at midnight, so there was not a single _______. (目击证人)
The old couples are busy preparing their 50^th __________ (annual) of marriage.
Your supporting details must be __________ (切题的) to the topic.
This is an optional course, so the attendance is purely v___________.
You have to attend the meeting by yourself unless you find a ________. (替代者)
He did his best to c________ the unfortunate man.