Ⅰ.Match the word with its meaning.

　　1．astronomy　 A．学说；理论

　　2．system B．猛烈的；激烈的；强暴的

　　3．theory C．大气层；气氛

　　4．violent D．基本的；基础的

　　5．atmosphere E．乘；增加

　　6．fundamental F．谜；(使)迷惑

　　7．harmful G．存在；生存

　　8．multiply H．有害的

　　9．exist I．天文学

　　10．puzzle J．系统；体系；制度

　　答案：1～5　IJABC　6～10　DHEGF

　　Ⅱ.Write down the meaning of phrases in each sentence.

　　1．The truth will come to light in time.迟早

　　2．As we know, laying eggs is the ant queen's full­time job.下蛋

　　3．Once she has made up her mind, nobody can prevent her from carrying out the plan.阻止

　　4．When it was in my turn, I was too excited to speak.轮到

　　5．Jane has just given birth to twins, so her mother must be in the hospital looking after her now.分娩

　　6．My relationship with the actors is fundamental to my work as a director.对......(来说)是基本的

Ⅰ.No one knows exactly how the earth and life began, but ancient legends (传说) may tell us something about it. Look at the following pictures and fill in the blanks.