应用化学专业英语.doc

Unit 1 The Roots of Chemistry
I. Comprehension.
2. B 3. D 4. C 5. B
II. Make a sentence out of each item by rearranging the words in brackets.
The purification of pound is usually a matter of considerable difficulty, and it is necessary to employ various methods for this purpose.
Science is an ever-increasing body of accumulated and systematized knowledge and is also an activity by which knowledge is generated.
Life, after all, is only chemistry, in fact, a small example of chemistry observed on a single mundane .
People are made of molecules; some of the molecules in people are rather simple whereas others are plex.
Chemistry is ever present in our lives from birth to death because without chemistry there is neither life nor death.
Mathematics appears to be almost as humankind and also permeates all aspects of human life, although many of us are not fully aware of this.
III. Translation.
(a) chemical process (b) natural science (c) the technique of distillation
化学过程自然科学蒸馏技术
It is the atoms that make up iron, water, oxygen and so on
正是原子构成了铁,水,氧等
Chemistry has a very long history, in fact, human activity in chemistry goes back to prerecorded times/predating recorded times.
化学具有悠久的历史,事实上,人类的化学活动可追溯到无记录时代以前
According to/From the evaporation of water, people know/realized that liquids can turn/be/change into gases under certain conditions/circumstance/envir