必做：
1.After all, a little healthy worrying is okay if it leads to constructive action-like having a doctor look at that weird spot on your back.
2.Data show that economic downturns tend to postpone marriage because the parties cannot afford to establish a family or are concerned about rainy days ahead.
选做★：Taylor defined culture as a complex whole which includes beliefs,arts,morals,law,custom,and any other capabilities and habits acquired by man as a member of society.
1.【解析】该题考察条件状语从句的用法。If 引导条件状语从句，主句是a little the healthy worrying is okay。Like having a doctor look at that weird spot on your back是插入成分，表示举例说明建设性行为。
【句意】毕竟，存在一些对健康状况的担忧还是好的，如果他能够导致建设性行为的话——比如让医生检查你背上的那块奇怪的斑。
2.【解析】该题考察原因状语从句的用法。该句为双重复合句。That引导宾语从句，作show的宾语。宾语从句中有一个because引导的原因状语从句，它的主句是economic downturns tend to postpone marriage.
【句意】数据表明，经济的衰退往往会使人们推迟婚姻，因为双方都没有经济能力建立家庭或者担忧以后的困难险阻。
选做★：【妙译】泰勒把文化定义为包括信仰、艺术、道德、法律、习俗以及包括作为社会成员的个人获得的其他任何能力、习惯在内的一种综合体。
【点拨】本句主干为“Taylor defined culture as a complex whole”，其余部分为定语从句修饰“complex whole”。定语从句中，过去分词短语“acquired by man as a member of society”作定语修饰“capabilities and habits”
汉→英
必做：
1._______(很明显)that Jack has returned.
2._________(几乎所有行为都是学来的)is a basic assumption of social scientists.
选做★：His ability has never been in doubt,but the question is________(他是否已准备好努力工作。)
答案及解析
1.It is evident
【解析】该题考点为主语从句后置，句首it充当形式主语
2.That nearly all behavior is learned behavior
【解析】该题考察主语从句的用法。主语从句需有连接词that引导，且不能省略(引导宾语从句的that可以省略)
选做★：whether he is prepared to work hard
【解析】该题考察表语从句的使用，前文中表示never in doubt,即为肯定之意，而后文中用but转折，表示与前文不一样的感情色彩，即有些怀疑，所以应用表示不确定的引导词whether或if;由于if不能用在表语从句中，故只有使用whether.