第5部分：补全短文(第46～50题，每题2分，共10分)
下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。
A.For an adult，time goes fast year by year.
B.It controls，for example，the flapping of birds’wings，the beating of the heart and the rising and setting of the sun.
C.The larger the animal is，the longer its life span is and the slower its life tempo is.
D.The tide goes out when the moon moves away and its attraction is weaker.
E.We always tend to think all the animals have the same sense of time as human beings.
F.The second spring tide takes them back to the sea.
第6部分：完形填空(第51～65题，每题1分，共15分)
下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。
Sharks Perform a Service for Earth’s Waters
51.A.meet B.attack C.recognize D.visit
52.A.research B.experiment C.analysis D.service
53.A.existence B.power C.mates D.skills
54.A.intelligenee B.shape C.activity D.size
55.A.fresh B.soft C.deep D.warm
56.A.whose B.which C.where D.that
57.A.for B.to C.as D.with
58.A.help B.food C.friends D.trainers
59.A.humor B.security C.touch D.smell
60.A.Droduced B.contained C.used D.added
61.A.those B.these C.other D.another
62.A.Drocesses B.systems C.ideas D.theories
63.A.escape B.recover C.return D.cut
64.A.hunting B.mental C.social D.swimming
65.A.weak B.little C.great D.few
