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I、课前预习
1. 预习1a,,找出新单词和词组，并写出汉语意思。
tired look tired cause have a headache have a toothache
2.翻译下列短语。
1.be bad for________________ 2. stay up late______________
3.go to bed early _____________ 4.read in the sun_______________
5.throw litter around___________ 6. do more exercise every day
自疑 请你将预习中不能理解的短语和句子写下来，等待课堂上与老师和同学探究解决。
___________________________________________________________________
预习等级_________________组长签字________________
II、交流合作
1.组内讨论以下病症的起因，并给予适当的建议。
IllnessReasonsuggestionfall downthrow litter aroundput litter into dustbinsore eyesread in the sunheadachestay up late
2. 小组内讨论以下生活习惯，判断是好习惯或坏习惯，并给出适当的建议。
Some living habitssuggestionGoing to bed early is good for our health.You should get up early every day. Getting up late is （ ） for our health.Doing morning exercises is （ ）.Keeping fingernails long is （ ）. Washing hands before meals is （ ）.Playing sports right after meals is （ ）. Going to school without breakfast is （ ）. Brushing teeth twice a day is（ ）.
Ⅲ、课堂展示:
1. Share the dialogs
2. Share your opinions about the living habits.
Ⅳ、点拨指导
1. Throwing litter around is bad for our health.
Reading in the sun is bad for our health.
Staying up late is bad for our health.
小组内观察以上句子，并总结划线部分短语的用法。
（1）___________ 在句中作主语，当动词作主语时，用_______________，谓语动词用_____。
如：在太阳下看书对你得眼睛有害。_________ _________ the sun is bad _______ your eyes.
(2) be bad for 表示_____________；其反义词组为_____________ 表示_____________。
如：________ ________ ________ _________ your health. 吸烟对你的健康有害。
_________ lots of vegetables_______ _______ _______ your health.多吃蔬菜有益于健康。
2. I must have a good rest .
★ must 是______动词，意为_______________________。后接动词_________。表示说话人的意志和义务。或表示说话人强烈的要求和命令。