幸福常常是朦胧的，很有节制地向我们喷洒甘lín____。你不要总希jì____轰轰烈烈的幸福，它多半只是悄悄地扑面而来。你也不要qǐ____图把水龙头拧得更大，使幸福很快地流失。而需静静地以平和之心，体验幸福的真dì____。

用所给动词的适当形式填空，完成短文

 Children’s Safety

I ____(talk) to some students. I ____(ask) about safety rules when they ____(be) younger. Their rules were very good.

John ____(say), “I couldn’t play in the kitchen.” His mum and dad didn’t ____(like) that.

Jennifer ____(can) play the piano and she could also ____(play) games in the living room. When her mum and dad ____(not, be) home, she couldn’t cook.

Tom could play in the bedroom or the living room. He couldn’t ____(play) in the bathroom or the kitchen.

What ____(be) your safety rules when you were young? ____(talk) to younger students about these and ____(help) them.

两个电热器的电阻之比是3：2，如果通过的电流强度相同，在相同的时间里，它们产生的热量之比是____ ．两个电阻值相同的电热器，如果通过的电流强度之比为1：2，在相同时间里，它们产生的热量之比是____ ．