1 . People go for walks less and prefer quiet rest at home. That’s ________ there are marathons and other sports events aimed at encouraging people to move more. （用适当的词填空）

2 . It is advised that one mustn’t go jogging very early in the morning; this is ________ the body temperature is lower and the bodily functions haven’t kicked in fully during this time. （用适当的词填空）

3 . The syrup(糖浆) finally turned into a solid coating, like the crystal on the surface of haws. That is ________ they are also called bingtanghulu. (用适当的词填空)

4 . But our plan is ________ these girls will apply what they learn to other girls through the power of their voice. (用适当的词填空)

5 . At the age of three or three and a half almost all children find the change to nursery easy, and this is undoubtedly _________ more and more parents make use of child care at this time. (用适当的词填空)

6 . However dark the road ahead is, always keep your head up to the sky because that’s ________ your dreams lie.（用适当的词填空）

7 . The ground floor of the forest is not all tangled leaves and bushes, like in films, but is actually fairly clear. It is ________ dead leaves turn into food for the trees and other forest life. （用适当的词填空）

8 . I am Peter Hodes, a volunteer stem courier. Since March 2012, I’ve done 89 trips — of those , 51 have been abroad, I have 42 hours to carry stem cells (干细胞) in my little box because I’ve got two ice packs and that’s ________ long they last. （用适当的词填空）

9 . What I’m hoping to accomplish is ________ my generation and younger start to reconsider and understand that jazz is not black and white anymore. （用适当的词填空）

10 . There’s a welcome familiarity — but also sometimes a slight suspicion ________ time has changed you both, and thus the relationship. But books don’t change, people do. And that’s ________ makes the act of rereading so rich and transformative.（用适当的词填空）