David likes sports.（A）他每天进行运动。He likes playing soccer （B）______ he thinks it is very interesting. He likes swimming, too. (C) He thinks it is relaxing. But he doesn’t watch sports games on TV. He thinks they’re boring. (D) David has a great collection. He has 18 footballs, 20 ping-pong bats, 19 basketballs.

小题1: 将文中（A）处划线句子译为英语.

____________________________.

小题2: 选择正确的单词填入（B）处: ___________

A. so         B. but          C. because           D. and

小题3: 将文中（C）处的划线句子译成汉语

______________________________

小题4:把文中 (D)处的划线句子变为否定句

_____________________________

小题5: How many basketballs does David have?          

A．18

B．19

C．23

D．10

制各样品时，称取约“的试样（精确至0.0001g）于150ml锥形瓶中，加入10ml浓硝酸，瓶口放一个小漏斗静置过夜，然后加入10m1浓硫酸，冷却后再加2m1浓盐酸且盖好小漏斗，再置于恒温水浴中加热消解。