玛丽当众讲话时总是很自信．
Mary is always confident when she speaks ．
We all want to protect our environment， but most of us are too busy or too lazy to make big changes that will improve our lifestyle and save the environment． Here are some suggestions for protecting our environment．
Donate， You may have lots of clothes or things you don′t like． （ 1 ） If they are still useful ？ give them to someone who needs them ．You can also choose to give them to charities．
Turn off your instruments ．When you do not use an instrument， turn it off． Turn off the light when you leave the room． It's an easy habit to keep and you can save electricity and money．
Walk or cycle． （ 2 ） Driving cars is one of the biggest causes of pollution ．If you want to drive your car， ask yourself the following question： Do I really need my car？ Walk or ride your bike if the journey is short．
将短文中画线部分的句子翻译成中文．
（1）
（2）
我们每天早上花一个小时读书．
我认为科学与数学一样重要．
我正期待着你们的答复．
I am hearing from you all．