1. Then, almost 400 years ago, an Italian scientist named Galileo began to question Aristotle´s theory of falling objects.
    后来, 大约在四百年前, 一位名叫伽利略的意大利科学家开始怀疑亚里斯多德的落体学说.

2. The crowd began to shout, but the matador was unaware of the danger.
    观众大哗，但斗牛士却没有意识到危险。

3. The old man drooped his head and began to murmur to himself my father´s name.
    老人低下头, 低声念叨我父亲的名字.

4. Then knowledge began to be acctumulated according to a systematic plan.
    于是知识便开始有系统有计划地积累.

5. The crowd began to shout, but the drunk was unaware of the danger.
    观众大哗，但醉汉却没有意识到危险。

6. Then knowledge began to be accumulated according to a systematic plan.
    于是，知识便开始有系统有计划地积累起来。

7. The hunt for the puma began in a small village where a woman picking blackberries saw ´a large cat´ only five yards away from her.
    搜寻美洲狮的工作是从一座小村庄开始的。那里的一位妇女在采摘黑莓时的看见"一只大猫"，离她仅5码远，

8. The nomads who made these markings lived by hunting and fishing during the last Ice Age which began about 35,000 B.C. and ended about 10,000 B.C.
    这些痕迹是游牧人留下的，他们生活在从公元前约35，000年到公元前10，000年的冰川期的末期，以狩猎、捕鱼为生。

9. The article began: ´Hundreds of steps lead to the high wall which surrounds the president´s palace.´
    文章的开头是这样的："几百级台阶通向环绕总统的高墙。"

10. The inspector began to look for fingerprints, while the constable checked that the front door locks had not been forced,
    巡官开始搜寻指纹，警察经检查发现大门锁头并无撬过的迹象。