单词拼写（共8小题；每小题0.5分，满分4分）

根据下列句子及所给单词的首字母或中文，写出各单词的正确形式（每空限填一词）。

小题1: Somebody who trains a person or team in sport is a c_________.

小题2: For the Japanese festival Obon, people should go to clean graves and light incense in m__________ of their ancestors.

小题3: As is known to all, there is no f ________ on earth that does not end in parting.

小题4: I think it is important to have a b__________ between study and social life, so I am going to join a few clubs.

小题5: She said she didn’t like it, but p__________ I thought it was very good.

小题6: Unexpected difficulties a__________ in the course of their experiment.

小题7: To be honest, a lot of people attach great i___________ to becoming rich and famous.

小题8: I’d a _______ it if you could lend me a hand.

①奶糖每千克24元，水果糖每千克18元．买两种糖果花了同样多的钱，但水果糖比奶糖多4千克．水果糖______千克，奶糖______千克．

②甲、乙、丙三人的年龄和为30岁，乙的年龄是甲、丙年龄和的一半．乙______岁．

③乒乓球从高空落下，到达地面后弹起的高度是落下高度的一半，如果乒乓球从8米的高度落下，那么弹起后再落下，则弹起第______次时它的弹起高度不足1米．