版高中英语北师大版选修7课件：Unit+21+Human+Biology
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Follow these simple steps to boost your virus protection：
Make Friends With Fresh Air Not only does escaping into the fresh air give you a break from all those germs circulating inside，but going for a stroll can actually boost your immunity. Relaxation Fights Off Colds Being stressed will increase your susceptibility to catching a cold.That may be because，over the long term，it leads to the ongoing release of stress hormones (荷尔蒙)，such as glucocorticoids(粮皮质激素)．
单
元 话
Unit 21 Human Biology
题
导
读
众所周知，疾病总是困扰我们的健康，有些秘诀可以帮助我们保持健康。 Four Secrets To Never Getting Sick
Ever wonder why you always seem to come down with a life interrupting virus this time of year，while other women you know sail through the seasons sniffle-free，cough-free，and ache-free?
touch something with our hands. 2.By touch.
•1、书籍是朋友,虽然没有热情,但是非常忠实。2022年4月19日星期二2022/4/192022/4/192022/4/19 •2、科学的灵感，决不是坐等可以等来的。如果说，科学上的发现有什么偶然的机遇的话，那么这种‘偶然的机遇’只能给那些学有素养的人，给那些善于独立思考 的人，给那些具有锲而不舍的人。2022年4月2022/4/192022/4/192022/4/194/19/2022 •3、书籍—通过心灵观察世界的窗口.住宅里没有书,犹如房间里没有窗户。2022/4/192022/4/19April 19, 2022
1．boost vt. 2．stroll n. 3．susceptibility n. 4．hamper vt. 5．triple vt.
促进；使增加 漫步；闲逛 敏感性；易感性 妨碍；阻止 (使某物)增至三倍
1．Why do we often wash our hands in order not to catch a cold? ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ 2．How can cold and flu spread? ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ 【答案】 1.Because cold and flu can spread easily through touch and we often
Clean Hands Are Everything Cold and flu can spread all too easily through touch.Keep your fingers away from your eyes，nose，and mouth as much as possible，and make sure to master the art of handw-ashing.Soap and water remain your most effective tools there. Enough Sleep Is The Magic Bullet An occasional restless night is nothing to worry about，but a continuous lack of sleep can hamper your immune(免疫)system's ability to function.Anything short of seven hours nearly triples your odds of catching a cold.
谢谢赏
You made my day!
我们，还在路上……
Make Friends With Fresh Air Not only does escaping into the fresh air give you a break from all those germs circulating inside，but going for a stroll can actually boost your immunity. Relaxation Fights Off Colds Being stressed will increase your susceptibility to catching a cold.That may be because，over the long term，it leads to the ongoing release of stress hormones (荷尔蒙)，such as glucocorticoids(粮皮质激素)．
单
元 话
Unit 21 Human Biology
题
导
读
众所周知，疾病总是困扰我们的健康，有些秘诀可以帮助我们保持健康。 Four Secrets To Never Getting Sick
Ever wonder why you always seem to come down with a life interrupting virus this time of year，while other women you know sail through the seasons sniffle-free，cough-free，and ache-free?
touch something with our hands. 2.By touch.
•1、书籍是朋友,虽然没有热情,但是非常忠实。2022年4月19日星期二2022/4/192022/4/192022/4/19 •2、科学的灵感，决不是坐等可以等来的。如果说，科学上的发现有什么偶然的机遇的话，那么这种‘偶然的机遇’只能给那些学有素养的人，给那些善于独立思考 的人，给那些具有锲而不舍的人。2022年4月2022/4/192022/4/192022/4/194/19/2022 •3、书籍—通过心灵观察世界的窗口.住宅里没有书,犹如房间里没有窗户。2022/4/192022/4/19April 19, 2022
1．boost vt. 2．stroll n. 3．susceptibility n. 4．hamper vt. 5．triple vt.
促进；使增加 漫步；闲逛 敏感性；易感性 妨碍；阻止 (使某物)增至三倍
1．Why do we often wash our hands in order not to catch a cold? ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ 2．How can cold and flu spread? ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ 【答案】 1.Because cold and flu can spread easily through touch and we often
Clean Hands Are Everything Cold and flu can spread all too easily through touch.Keep your fingers away from your eyes，nose，and mouth as much as possible，and make sure to master the art of handw-ashing.Soap and water remain your most effective tools there. Enough Sleep Is The Magic Bullet An occasional restless night is nothing to worry about，but a continuous lack of sleep can hamper your immune(免疫)system's ability to function.Anything short of seven hours nearly triples your odds of catching a cold.
谢谢赏
You made my day!
我们，还在路上……