48.The 42% of Americans who have at least one step-relative typically feel a stronger sense of obligation to their biological parent, child or sibling than to their step-relatives.

7.“骤变与适应” 是教师专业发展哪一阶段的突出特点？（ ）

一、单选题（30分）1. All acceptance of religion is based on belief, not on the weight of evidence or the _______ of reasonable conclusions.

52.But other recent studies say marital breakups have mixed long-term effects, foster growth in some children and the resolve to build happier marriages of their own. 

34.Early to bed and early to ______ makes a man healthy, wealthy and wise.

二、多选题（30分）31.His words ______ a threat.

39.To work in such a place you have to be ______ to these things.

36.We unanimously elected him ______ chairman.

3. Every boy and every girl ________ pleased when they saw Shenzhou VI was sent up to space.

51.I think work for a newspaper and reporting from all over the world are really exciting. 

30.How would you like ______ if you were watching your favorite TV program and someone came into the room and just shut it off without asking you?

13.John _______ me he was going to help me with my English.