Unit2 Topic2 Section D-八年级英语上册精品课件(仁爱科普版)

A. Less than three times a week. B. Three to six times a week.
C. Every day.
( )5.How often do you eat fruit and vegetables?
A. Never. B. Seldom.
C. Often.
You _m_u_s_t_ take some medicine.
_M__a_y_ I borrow your newspaper and show it to my father?
Functions
__S_ta_y_i_n_g_ up late is bad for your health.
How terrible! Don’t read __i_n__ the sun.
但A、B作主语时，由B来决定谓语的形式
（即遵循就近原则）。
eg. Not only you but also your brother needs to
keep away from smoking and drinking. 不仅你而且你的弟弟都需要远离抽烟和酗酒。 （连接两个主语）
eg. My sister can not only play the piano well but also play chess well.（连接两个谓语）
Learning aims:
I、Master the new words and phrases： shower, fact, unhealthy, body, harm, smoker, risk,
possible, in face, as...as possible... II、Be able to remind and warn your family members and friends. And give some good advice. III、Be able to use modal verbs, such as must, mustn’t, may, can.
We should tidy our rooms every day. ___________________________________________
tidy vt.整理，收拾 adj.整齐的，整洁的
sour v./n. 吐痰；唾沫 in public 在公共场合
___W___e___m___u_s__t_n__’_t__s_p__i_t__i_n__p__u__b__l_i_c_.____
The smoke from cigarettes harms ___n_o_t_o_n_l_y___ (only/ not only) smokers but also other people. It’s called “second-hand smoke” and it ___ca_n__ (can/can’t) be more dangerous and has higher risks. Smokers shouldn’t use smoking to help them relax. They __m_u_s_t_ (must/mustn’t) give up smoking as soon as possible.
2
Some people think that smoking ____ca_n___ ( must/can) help him relax. In fact, smoking is really __u_n_h_ea_l_th_y__ (healthy/unhealthy). Do you know that there ___a_re__ (is/are) over 4000 chemicals in cigarettes? These chemicals are ___b_a_d__ (good/bad) for our bodies. They _c_a_n__ (must/can) cause cancer and other diseases.
4. They must give up smoking as soon as possible.
考点： use A to do B = use A for doing B
意为“用A去做B” eg. Our teachers often use computers _to__g_iv_e__ (give) us lessons = Our teachers often use computers for __g_i_v_in_g__ (give) us lessons.
考点： as...as possible “尽可能......地”，可以与
as....as one can 互换使用。 eg. We should be as friendly to others as possible. = We should be as friendly to others as _w_e_ _c_an__.
It’s ___g_o_o_d__ for your health. It will keep you _a_c_ti_v_e_ during the day.
can
be able to
1. can 表示能力，意为“能，会”。没有人称和数的变化，其过去式为could。 只有一般现在时和一般过去时两种时态。 be able to 表示能力，强调通过努力而获得的能力。可用于多种时态： 一般现在时：am/is/are able to 一般过去时：was/were able to 一般将来时：will be able to 现在完成时：have/has been able to
Lead-in
We should take showers often.
shower n./v. 淋浴 have/take a shower = take/have showers
We should wash the hands before meals. ______________________________________
Review
It belongs to the staple. Many people eat it every
meal.
It’s made of potatoes.
提示：点击红盖子揭晓答案
A kind of bread with vegetable or meat.
quick response
Jack can __n_o_t _ _o_n_ly__ play the guitar will __b_u_t _ _a_l_so__ play erhu well.
Language points
3. Smokers shouldn’t use smoking to help them relax.
Languagቤተ መጻሕፍቲ ባይዱ points
2. The smoke from cigarettes harms not only smokers but others.
考点： 句中的not only A but B “不但A而且B”省
略了also，(= not only A but also B = not only A also B)，A、B是两个并列成分，在词性和在 句子中的功能方面都是相同的。
We should often open the _w___i_n_d__o__w___t_o___k__e__e_p___t_h__e__a__i_r__f_r_e__s_h__._
keep sb./sth. +adj. 让某人/某物处于 某种状态
sour adj. 酸的
_W___e__m___u__s_t_n__’_t__d__r_i_n_k___s__o_u__r__m___i_l_k__.___
及时练习： 1. Not only you but also she __le_a_r_n_s__ (learn) art. 2. Not only Lily but also I ___a_m____ (be) good at English. 3. Not only your friends but our friends __li_k_e____ (like) ice cream. 4. Jack can play the guitar well, He can also play erhu well. （改为同义句）
( )6.How long do you watch TV every day?
A. More than 4 hours. B. 2-4 hours. C. Less than 2 hours.
Testing How Healthy You Are
Scores: A = 1 point B = 2 points C = 3 points Total score: _________
1. Choose the answer to each question according to your lifestyle.
( )1.How often do you walk to school?
A. Never. B. Sometimes. C. Always.
( )2.How often do you eat candy?
Language points
1. In fact, smoking is really unhealthy.
2. The smoke from cigarettes harms not only smokers but others.
考点： （1）in fact “事实上，实际上”
= as a matter of fact （2）unhealthy “不健康的”
be unhealthy = be not healthy 是不健康的
考点：
harm 既可以作动词，也可以作名词，其形
容词为harmful。
“伤害”的表达：
harm sb./sth.
(v.)
= do harm to sb./sth. (n.)
= be harmful to sb./sth. (adj.)
Conclusion
What you should do to keep healthy.
(6-9) Unhealthy
(10-13) Just so-so
(14-18) Healthy
Read through Sections A-C and fill in the blanks with the correct words.
Grammar Modal Verbs (IⅠ): must/mustn’t; may; can
You _m__u_st_n_’_t throw litter around. He thinks smoking _c_a_n_ help him relax.
It _c_a_n_ even cause cancer.
A. Often. B. Seldom.
C. Never.
( )3.How long do you usually sleep at night?
A. Less than 7 hours. B. More than 10 hours. C. 7-10 hours.
( )4.How often do you exercise?
1. Eating too much meat. 2. Going to bed late and getting up late. 3. Going to school without breakfast. 4. Throwing litter around.
1. We must have enough food to keep healthy. 2. We must have the right kinds of food. 3. We should have different food. 4. We shouldn’t eat too little or too much.
1 1
5
3
6
2
4
Practice
1. Taking a walk after meals. 2. Going to bed early and getting up early. 3. Drinking enough water every day. 4. Washing hands before meals.