问题补充：
单词拼写（共10小题，每题1.5分，满分15分）
【小题1】Don’t e1.expose your skin to direct sunlight, or you’ll get sunburnt.
【小题2】The scientist often 2. contributes(向……投稿) to an academic journal.
【小题3】Only by s3.scientific training can Liu Xiang make such rapid progress in 110-meter hurdles.
【小题4】If we were too 4. cautious(小心的) , we might lose a good business opportunity.
【小题5】The new school is under c5.construction and it is said that it will be the biggest one when completed.
【小题6】We have provided seats for the 6. convenience(方便) of our customers.
【小题7】Animals in zoos are not in their natural s7. surroundings.(环境)
【小题8】 He is a man who is 8. optimistic（乐观的） about life.
【小题9】 9. Previous（在……之前） to leaving for France, he studied a lot about the country.
【小题10】She is c10. constantly changing her mind so no one knows what her final decision is.
答案：
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单词拼写（共10小题 每题1.5分 满分15分）【小题1】Don’t e1.expose your skin to direct sunlight or you’ll get s
