1．In the summer of 1905，this outspoken young man was_rocking his one－year－old baby when he was suddenly inspired.

　　1905年的夏天，这位直率的年轻人正摇着他一岁大的孩子，这时他突然产生了灵感。

　　2．Einstein had already become world－famous when a young ex－lawyer，returning_from_the_First_World_War，started work in California.

　　从一战中转战回来，曾经担任过律师的年轻人在加利福尼亚开始工作时，爱因斯坦已经举世闻名了。

　　3．He double－checked and saw a blue mould in the dish around_which_the_bacteria_had_ been_destroyed.

　　他仔细检查了一下，看到碟子里有一种蓝色的霉斑，其周围的细菌都被消灭了。

　　4．There_is_no_doubt_about it.

　　此事毋庸置疑。

　　课文阅读理解

　　Ⅰ.Fast－reading

　　1．What's the main idea of Paragraph 1?

　　To_mention_the_scientific_breakthroughs_in_the_20th_century./To_mention_the_most_important_discoveries_of_the_20th_century.

　　2．List five pioneers in the discoveries according to the text.

　　①Albert_Einstein　②Edwin_Hubble　③Alexander_Fleming　④Eckert　⑤Mauchly

　　3．Which sentence in the text is the closest in meaning to the following one?

　　It is difficult to choose the most important discovery of the 20th century，but the pioneers are easy to choose.

Although_it_is_impossible_to_choose_the_most_important_discovery