问题补充：
In China，more and more middle school students are getting 56sleeping time than before．Most students sleep less than nine hours every night, because they have much homework to do．Some homework 57by their teachers，and some by their parents. Also, some students don’t know 58to save time．They are not 59enough while they do their homework, so it 60them a lot of time．Some students spend too much time 61TV or playing computer games．They stay up very late．Some students have to get up early every morning 62weekdays to get to school on time by bus or by bike． It can be a long way from home to school．
Schools and parents should cut down some of the homework 63our children can enjoy more than nine 64sleep every night for their health．For children, we should make best use of our time. When we have enough time for sleeping，we will find 65much better for both our study and health.
【小题1】A．that B．this C．ItB 【小题1】A 【小题1】B 【小题1】B 【小题1】C
答案：
(答案→)B 【小题1】A 【小题1】B 【小题1】B 【小题1】C
解析：
【小题1】根据第二句可知，现在的中学生睡眠都不足9小时，所以第一句说的是中学生的睡眠时间正变得越来越短。故选B。
【小题1】考查被动语态。homework和give之间是被动关系，应该用被动语态，即be+过去分词。故选A。
【小题1】一些学生不知道怎样节省时间，what“什么”；how“怎样”；why“为什么”。故选B。
【小题1】有些学生不够认真，浪费了很多时间。Careful“细心的”；careless“粗心的”。故选B。
【小题1】考查“花费”的用法。take指花时间；cost指花钱；两个词的主语常是物；spend的主语是人。故选C。
【小题1】考查固定搭配。Sb. spend time doing sth.“花时间做某事”。Look不及物；watch指较长时间地注视。故选B。
【小题1】考查时间介词的用法。for“为，给”；from“从”；on“在”。特指具体的一天用介词on。故选C。
【小题1】考查从句的连接词。A“以便于”，表目的；B“”因为；C“即使”。本句表示目的。故选A。
【小题1】考查名词所有格。复数名词要先变为复数，再加“’”。故选B。
【小题1】考查find的用法。find后可加宾补结构。it是形式宾语，better是补足语。故选C。
