《Don'teatinclass》精品课件2

预习检测
Does he have to wear the school uniform at school? Don’t run in the hallways. Can we eat in the classroom?
思考探究
★must和have to的区别： 1. must表示主观上的必须，而have to侧重客观上的 必要性。如： You must go to school now. 你必须现在就上学。 I have to stay at home and look after my grandmother. 我必须呆在家照顾我奶奶。 2. must的否定形式mustn’t表示禁止，不许；have to 的否定形式don’t/doesn’t have to表示不需要，不必要。 3.must和have to都是情态动词，都接动词原形，must 无人称和数的变化，而have to有时态和人称的变化。
Unit 4 Don’t eat in class.
学习重点
单词: out, practice, dish, before 短语: go out, do the dishes 句型: 1. ---Can we eat in the classroo?
---No, we can’t, but we can eat in the dining hall.
day.
四、完成句子。
16. 她每天练习游泳两个小时。 She _p_r_a_c_t_ic_e_s__s_w_im__m__in_g__ for two hours every
day. 17. 放学后我必须要照顾我的妹妹。 I _h_a_v_e__to__look after my sister after school. 18. 在晚上不要出去。_D_o_n_’_t _g_o_o__u_t __ at night. 19. 晚饭后你必须洗碗。 You must _d_o__th_e__d_is_h__e_s_after supper. 20. Mike每天都帮助他妈妈做晚餐。 Mike_h_e_lp_s__h_i_s_m__o_th_e_r__(t_o_)_m__a_k_e_dinner every
help Dad in the garden.
A. can B. can notC. has to D. must
2)--- C I do the dishes first?
---No, you . You can do your homework first.
A. Must; mustn’t B. Can; mustn’t
能力阶梯
( C ) 3. —___ you have to go to school today? — No, we don’t.
A. Are B. Can C. Do D. Does
(A ) 4. Students have to __ the classroom every day.
A. clean B. cleans C. cleaning D. to clean
( A ) 5. I usually practice __ violin in the morning.
A. playing the
B. play the
C. to play the
D. playing
能力阶梯
before outside
rules important
sorry
三、用所给词的适当形式填空。 11. You must do the _d_is_h_e_s_(dish) before you go
2. ---Does he have to wear a uniform at school? ---Yes, he does./No, he doesn’t.
3. ---What do you have to do? –-We have to be quiet in the library.
预习检测
We often _p_r_a_c_t_ic_e__d_r_a_w_i_n_g_____.
2. 她每天练习弹钢琴。
She practices playing the piano every day.
3. 讲英语需要多加练习。
Speaking English needs a lot of _p_r_a_c_ti_s_e__. 4. 熟能生巧。Practise makes perfect.
4.用must和用have to构成的一般疑问句，肯定回 答和否定回答方式不一样。试比较：
---Must I finish my homework first? ---Yes, you must./No, you needn’t./No, you don’t have to.
---Does she have to go home now? ---Yes, she does. /No, she doesn’t. 练习： 1) Bob can not go to the cinema because he_C___
一、请根据中文意思写出下列单词。（这些都是黑 体单词，要好好记住哦。） 1. __c_a_r__ adv. 外出 2. __l_if_e__ v. /n. 练习 3. __s_to_p__ n. 碟；盘 4. __r_id_e__ prep.& conj. 在……之前
预习检测
二、请认真阅读课本，找出以下短语。 5. 外出 go out 6. 清洗餐具 do the dishes 7. 晚餐前 before dinner 8. 在上学的日子里 on school days 9. 在上学期间的晚上 on school nights 10. 做早餐 make breakfast 11. 打扫房间 clean the/one’s room 12. 练习钢琴 practice (playing) the piano
out. 12. He often helps me _c_le_a_n_/_t_o__c_le_a_n__( Nhomakorabealean)
the classroom. 13. What are the __ru_l_e_s_(rule)? 14. We have to ___b_e__ (be) quiet in the library. 15. We can’t _e_a_t___(eat) in the hallways.
Period 2训练案 (课本P21-P22) 成效追踪
practice的意思及用法： practice作及物动词，意为“训练，练习”，后接名词、
代词和_动_名__词___作宾语，如practice playing the guitar；
它还可作不可数名词，意为“练习，实践”。
练习：
1. 我们经常练习画画。
能力阶梯
一、单项选择 ( A ) 1. Don’t ___ TV for a long time. A. watch B. watches C. Watching D. to watch
( A ) 2. Gina often helps her mother ___ the dishes. A. Do B. does C. doing D.to does
C. Must; needn’t D. Must; must ★help的意思及用法： 1. help sb. (to) do sth.帮助某人做某事； 2. help (sb.) with sth.在某方面帮助某人。 3) 在周末，我帮助妈妈打扫房间。 On weekends, Ihelp my mother clean the room. 4) 我姐姐经常帮助我学英语。 My sister often _h_e_lp__s_m__e_w__it_h_ English.