Many ways to sleep
How do you sleep？ Most people sleep on their backs or sides． （1）Do animals sleep the same way？ Actually the ways they sleep are much more different﹣they can lie down ，sit or stand while they sleep．
Swiss scientists did a study on 250 different animals． They found that the animals' sleeping postures （姿势） had something to do with their body size and weight．
The small animal with short legs sleeps on its stomach． Its body shape is perfect for this posture．It also likes to put its legs under its body． Rabbits and cats sleep this way．
But larger animals sleep differently． （2）They lie on their sides． That's because this is more comfortable for their longer legs． Cows often sleep like this．
However， there are exceptions （例外）． Small animals such as mice sometimes sit down to take a short sleep． Some large animals such as horses， zebras and giraffes sleep standing up．
（3）In this way， they can quickly escape if they are in danger．
将短文中画线部分的句子翻译成中文．
（1）
（2）
（3）
我见你经常骑这辆蓝色自行车，你买了多久了？
I often see you ride this blue bike．How long it？
这次火灾事故中，消防员们的英勇表现对森林保护产生了很大影响．他们是我们的英雄．
In the fire accident，the firemen's bravery to our forest protection．They are our heroes．
十堰的空气是多么的清新啊！
the air in Shiyan is!
我们相信中国梦一定能实现．
We believe that the Chinese Dream can for sure．
In our daily life， much plastic package is used just once and then thrown away． According to a new study from the University of California， 9% of this is recycled， 12% is burnt and 79% goes to landfill． And because most plastic doesn't biodegrade， once it's in the ground， it stays there． （1）The study also shows that eight million tons of plastic waste are pouring into the sea every year．
Scientists have calculated the total amount of plastic ever made： 8.3 billion tons． That's as heavy as one billion elephants． And almost all of it has been made in the last 65 years．
（2）每个人都应该参与拯救地球． Protecting the environment is protecting ourselves． If the environment is taken good care of， we can have clean water and green mountains． （3）绿水青山或是金山银山．
What can we do as students？ Just say no to single﹣use plastics like straws， cups and bags． Many people love to drink from a straw or use plastic to carry things， but they are really bad for the environment．
（4）Bring your own chopsticks if you're planning to eat outside． It can be hard to remember．
Just put a pair of chopsticks in your bag before you leave home．
You know you're going to need some water to get you through your day． So carry a bottle（or a cup） with you． （5）That will help you avoid plastic bottles．
（1）
（2）
（3）
（4）
（5）