如图为某地等高线地形图．读图，完成问题．对于③和④两条虚线的判断，正确的是（   ）

读一读，做一做。

音乐喷泉

    爸爸带我去观赏音乐喷泉。

    灯光暗下来，乐曲响了起来，我“看见”音乐了！

    音乐，以前我只听过它美妙的声音，今天，我看见它的模（mú  mó）样了。它变成了许多会奏（zòu  zhòu）乐的小水珠。她们像一群翩翩起舞的小仙女，忽而飞起，忽而落下；忽而聚在一起，忽而向四处散开；忽而化作春风，忽而又变成波浪……

    我感觉自己像一朵奇异的云，也跟着飞起来，舞起来。

    回家的路上，爸爸告诉我，音乐喷泉装有一个特别的控制器。控制器根据乐曲声音的高低强弱，发出不同的信号，让喷泉喷出或高或低，或多或少的水珠。这样，我们就能边看喷泉变听美妙的音乐了。

    Here are some students' schedules.

    Peter gets up at 6：00 am. After that, he brushes his teeth and takes a shower, and then he has breakfast. At 7：30 am. he takes the school bus to school. It takes him about 10 minutes. He gets home at 4：20 p.m. and does his homework at about 4：30 p.m.

    Cindy gets up at 7：00 a. m. Then she brushes her teeth and takes a shower. After a quick breakfast, she goes to school by subway at 7 ：30 a.m. It takes her about twenty minutes. She gets home at about 4：45 p.m.

    Li Yang gets up at 6：45 am. After breakfast, he walks to school from 7：20 am. to 7：40 am. After school he often plays soccer with his friends. He usually does his homework at 7：30 p.m. He doesn't watch TV. He goes to bed at 9：30 p.m.

    Han Mei gets up at 6：15 am. Then she takes a shower. At 7：00 a.m., she has breakfast.After that, she takes a boat to school. It takes her half an hour to get to school. At 4：30 p.m., she gets home. Then she does her homework, has dinner and watches TV. She goes to bed at 9：00 p.m.