如图所示，甲图是某同学在测量一支铅笔的长度，试指出两处操作的错误是：

①____；

②____；

乙图是某同学在测水的温度，其中操作的两处错误是：____．

小丽是一个孝敬僅事的 孩子，她从来不对父母提过分的要求，有好吃的东西，总是先让爸爸妈妈吃，爸爸加班回来，她会给爸爸倒一杯热水，妈妈做家务累了，她会提醒妈妈注意休息，她自己也会做一些力所能及的家务活，至于学习，小丽一贯认真自觉，不用父母费心。

请从小丽的表现中概括孝敬父母应从哪些方面做起。

    My class is like (像) a big1. I like all my2. I have3friends in my class. One of them is Suzy, a girl from Nanjing. But now she lives4Yangzhou.

    Suzy is a good student. She learns (学) all her5well. Her favourite thing is6. She thinks books are like food and help her7lot.

    8Wednesday afternoons, she always9to a nursing house (敬老院). Sometimes she10with the old people there. Sometimes she plays some music for them. They enjoy11o Beijing Opera (京剧) very much.

    Suzy is also a good12. She thinks Yang Liping is one of the best dancers in the world. So she often13Yang's shows on TV. Her great dream14 to see Yang Liping, though（尽管）she knows it is15 .

关于地球上五带的叙述正确的是（   ）

____＋26＝43            90＋____＝280

____ -560=700          ____+800=1900

980-____=650          450+____=2800