综合填空（共10空，计10分）
先通读下面的短文，掌握其大意，然后根据短文内容和所给首字母，在空格内填入一个适当的词，使短文意思完整。所填单词在题后横线上必须完整写出。
In most countries of the world, there is one medicine called aspirin. N_________小题1: everyone takes it. People take it when they have an ache or a pain, and s ________小题2:when they have a fever(发烧) . Doctors b_________小题3:it can also help people who have heart disease and some other diseases, too. Some people, however, cannot take aspirin. It must never be given to c_______小题4:under 12 years old.
Before aspirin was i_________小题5: , some people made a drink with the bark( 树皮) of the white willow(柳树) . This drink made their pains and fever go away, but no one knew w_________小题6:it helped. Then, in the 1830s, scientists in England s_________小题7: all the things that were in the bark of the white willow. They found out what thing in the plant s_________小题8: pain. Soon people were making medicine with this pain-stopping thing and selling it. Later scientists found out how to make aspirin w_________小题9:using any plants at all. Aspirin was first s_________小题10:in 1899 by the Bayer Company of Germany.