新概念二册第17课
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5.-Is it OK if I watch TV for six hours? -If_y_o_u_w_a_t_c_h_t_o_o_m_u_c_h__T_V_,_y_o_u_r_e_y_es_w__il_l _h_u_r_t._____ (you watch too much / eyes hurt).
3 If she__w__in_s___ (win) the prize ,we _w_i_ll_b__e_(be) happy. 4.If I __d_o_n_’t_e_a_t_ (not,eat )so much ,I _w__il_l _g_e_t__(get) thinner.
5.If you __te_l_l __(tell) them, they __w_o_n_’_t_b__e_li_e_ve_ (not,believe) you. 6. I _w__il_l_s_ta_y__(stay) at home,If it __r_a_in_s_____( rain). 7.If it _d__o_e_s_n_’t_r_a_i_n_(not,rain) ,I __w__il_l _g_o__( go) out. 8. we _w__il_l _p_la_y___(play) football, If it is _s_u_n_n_y____(sun) . 9.If she _b_e_c_o_m__e_s__(become) a star ,her parents __w_o_n_’_t_s_e_n__d_
Must
3. mustn‘t 表示禁止 e.g. You mustn't smoke here.
4. 表示抱怨 e.g. Why must it rain again on Sunday ?
Summary
must ຫໍສະໝຸດ Baidu须 have to
have got to
主观 客观 客观
现在must do 表推测 过去must have done
appear on the stage as 在舞台扮演
have to 不得不
bright red dress 鲜艳的红色
take part in 参加 a new play一个新剧
A long black stocking长黑丝 Wear short socks 穿短袜
a girl of seventeen17岁的女孩 A bright orange –coloured dress
Special difficulties
2. dress ：” 女服 ” “ 女礼服”
suit
: “ 男装 ” “ （一套）衣服 ”
costume : 在特别场合下穿的衣服，如戏 服，化装舞会上的服装
e.g. All the actors wore the
fifteenth-century costumes
否定表示不允许,禁止 否定表示不需要
mustn’t
needn’t ，don’t have to
Must
2. 表达推测 must+v. (原) 表示对现在情况的肯定推测
e.g. Mary must have some problem: She keeps crying.
must+have+done 表示对过去情况的肯定推测 e.g. I called very loud. He must have heard me.
Now
Does she look young?
16 years ago
Do you think how old she is? She must be at least……
Discussion
1.How old is your mother/father? 2. Do they look young? 3.Does your mother have any good way to stay young? 4.Do they do a lot of exercises? 5.Do they use any cosmetics 【kɔz'metiks] (化妆品）? 6. Do you have any good suggestions for staying healthy?
At an early stage of the play appear on the stage
①the sun was very bright . ② the boys are very bright . ③ he has a bright future.
bright
• Sock n. 短袜 • Stocking n. （女用）长筒袜
3.-I don’t like speaking English outside the classroom. -If__y_o_u_d_o_n_’_t _p_r_ac_t_ic_e_,_y_o_u_w_o_n_’_t_im__p_r_o_ve_.________ (not practice / not improve).
before
Now
She is an actress, too. Which picture do you think is her now? She often appears on the stage as a young girl.
She is an actress， too. Which picture do you think is her now?
Special difficulties
Grow and Grow up
grow vi. 生长，成长，发育 Trees of the kind don’t grow in our country. How tall you’ve got! You’ve grown a lot.
grow up 长成，成熟（其被动态表示长大成人） Lucy has grown up a lot since I last saw her.
Special difficulties
Special difficulties
1.as:
prep. = in the position of 作为（1） e.g. He works as an engineer He works like an engineer （他不是工程师，但行为举止像工程师）
1) Eat some breakfast, or you’ll get hungry at school.
If you don’t eat some breakfast, you’ll get hungry at school.
2) Hurry up! We’ll be late!
If you don’t hurry up, we’ll be late.
4.-Should I tell my teacher I don’t understand the homework? -If_y_o_u_t_e_ll_h_e_r_, _sh_e__ca_n__h_el_p_y_o_u_.________________ ( tell her /can help you).
情态动词must
Must
1.表达义务，≈ have to 必须
must
have to
强调主观
强调客观
I don’t like it. I must It’s late. I have to go leave.
单一时态
时态丰富（各种时态）
不能用于will和shall 后 have to / had to/ will have to
3) Read the instructions carefully. Then you’ll know what to do.
If you read the instructions carefully, you’ll know what to do.
— I want to get high scores. — If y_o_u__w_o_r_k__h_a_r_d_,_y_o_u__w_i_ll_d_o__w_e_l(lw. ork hard/ do well)
Lesson 17
Always young
1.If he__d_o_e_s_n_’t_d__o__ (not, do it ), I___w_i_ll_d_o____(do) it. 2.If you _a_r_e_ (be) late for school ,your teacher __w_il_l_b_e__(be) angry.
1.-how can I remember my friends’ birthdays? -If_y_o_u__ke_e_p__a_n_o_te__in__yo_u_r__d_ia_r_y_, _yo_u__w_i_ll_r_e_m_e_m_b_e_r_. (keep a note in your diary / remember).
appear v.扮演,登台 appearance n.外貌 disappear v.
We can’t judge by his – appearance
disappearance n.
appear as : 扮演...角色
stage n. 舞台 阶段
• on the stage： • 在舞台上 • in the stage： • 在某一阶段
www.wondershare.com
怎么保持容颜青春永驻
每天一斤水果 一杯牛奶（不含三聚氰胺） 一小时有氧运动（较缓和的运 动） 一个友情故事（书 …… ） 一个爱情故事（尽量 少看电视 伤皮肤的！） 一个笑话故事
at least 至少
in spite of this 尽管
grown up 成长
conj. = because 因为（2） e.g. I cannot come as I am busy. = at the time when（3） e.g. As I was leaving the house , the postman brought a letter.. = in the way that 按照…的方式（4） e.g. Do as you are told.
Listening to the tape and answer the questions:
What is my aunt? How old is she? What does she wear in her new play? What does she answer if anyone asks her age? Which singer do you think looks younger than his/her age? Would you like to be always young? And why? Do you like to guess others age or not?
(not,send) her away . 10.He _w_il_l_w_a_t_c_h_(watch) TV ,if he ___is___(be) free.
Listen in class, or you won’t understand what to do.
If you don’t listen in class, you won’t understand what to do.
2.-It’s late, but I don’t want to go to sleep. -If _y_o_u_d_o_n_’_t _ge_t_e_n_o_u_g_h_s_l_ee_p_,_y_o_u_’l_l_fe_e_l_t_ir_e_d_a_t_s_c_h_ool. (not get enough sleep/ feel tired at school).
www.wondershare.com
eg. 你必须少抽些烟。 You must cut down on smoking. I’m afraid I must go now.
eg. Must you leave now? Yes, I must./ No, I needn’t.
www.wondershare.com
3 If she__w__in_s___ (win) the prize ,we _w_i_ll_b__e_(be) happy. 4.If I __d_o_n_’t_e_a_t_ (not,eat )so much ,I _w__il_l _g_e_t__(get) thinner.
5.If you __te_l_l __(tell) them, they __w_o_n_’_t_b__e_li_e_ve_ (not,believe) you. 6. I _w__il_l_s_ta_y__(stay) at home,If it __r_a_in_s_____( rain). 7.If it _d__o_e_s_n_’t_r_a_i_n_(not,rain) ,I __w__il_l _g_o__( go) out. 8. we _w__il_l _p_la_y___(play) football, If it is _s_u_n_n_y____(sun) . 9.If she _b_e_c_o_m__e_s__(become) a star ,her parents __w_o_n_’_t_s_e_n__d_
Must
3. mustn‘t 表示禁止 e.g. You mustn't smoke here.
4. 表示抱怨 e.g. Why must it rain again on Sunday ?
Summary
must ຫໍສະໝຸດ Baidu须 have to
have got to
主观 客观 客观
现在must do 表推测 过去must have done
appear on the stage as 在舞台扮演
have to 不得不
bright red dress 鲜艳的红色
take part in 参加 a new play一个新剧
A long black stocking长黑丝 Wear short socks 穿短袜
a girl of seventeen17岁的女孩 A bright orange –coloured dress
Special difficulties
2. dress ：” 女服 ” “ 女礼服”
suit
: “ 男装 ” “ （一套）衣服 ”
costume : 在特别场合下穿的衣服，如戏 服，化装舞会上的服装
e.g. All the actors wore the
fifteenth-century costumes
否定表示不允许,禁止 否定表示不需要
mustn’t
needn’t ，don’t have to
Must
2. 表达推测 must+v. (原) 表示对现在情况的肯定推测
e.g. Mary must have some problem: She keeps crying.
must+have+done 表示对过去情况的肯定推测 e.g. I called very loud. He must have heard me.
Now
Does she look young?
16 years ago
Do you think how old she is? She must be at least……
Discussion
1.How old is your mother/father? 2. Do they look young? 3.Does your mother have any good way to stay young? 4.Do they do a lot of exercises? 5.Do they use any cosmetics 【kɔz'metiks] (化妆品）? 6. Do you have any good suggestions for staying healthy?
At an early stage of the play appear on the stage
①the sun was very bright . ② the boys are very bright . ③ he has a bright future.
bright
• Sock n. 短袜 • Stocking n. （女用）长筒袜
3.-I don’t like speaking English outside the classroom. -If__y_o_u_d_o_n_’_t _p_r_ac_t_ic_e_,_y_o_u_w_o_n_’_t_im__p_r_o_ve_.________ (not practice / not improve).
before
Now
She is an actress, too. Which picture do you think is her now? She often appears on the stage as a young girl.
She is an actress， too. Which picture do you think is her now?
Special difficulties
Grow and Grow up
grow vi. 生长，成长，发育 Trees of the kind don’t grow in our country. How tall you’ve got! You’ve grown a lot.
grow up 长成，成熟（其被动态表示长大成人） Lucy has grown up a lot since I last saw her.
Special difficulties
Special difficulties
1.as:
prep. = in the position of 作为（1） e.g. He works as an engineer He works like an engineer （他不是工程师，但行为举止像工程师）
1) Eat some breakfast, or you’ll get hungry at school.
If you don’t eat some breakfast, you’ll get hungry at school.
2) Hurry up! We’ll be late!
If you don’t hurry up, we’ll be late.
4.-Should I tell my teacher I don’t understand the homework? -If_y_o_u_t_e_ll_h_e_r_, _sh_e__ca_n__h_el_p_y_o_u_.________________ ( tell her /can help you).
情态动词must
Must
1.表达义务，≈ have to 必须
must
have to
强调主观
强调客观
I don’t like it. I must It’s late. I have to go leave.
单一时态
时态丰富（各种时态）
不能用于will和shall 后 have to / had to/ will have to
3) Read the instructions carefully. Then you’ll know what to do.
If you read the instructions carefully, you’ll know what to do.
— I want to get high scores. — If y_o_u__w_o_r_k__h_a_r_d_,_y_o_u__w_i_ll_d_o__w_e_l(lw. ork hard/ do well)
Lesson 17
Always young
1.If he__d_o_e_s_n_’t_d__o__ (not, do it ), I___w_i_ll_d_o____(do) it. 2.If you _a_r_e_ (be) late for school ,your teacher __w_il_l_b_e__(be) angry.
1.-how can I remember my friends’ birthdays? -If_y_o_u__ke_e_p__a_n_o_te__in__yo_u_r__d_ia_r_y_, _yo_u__w_i_ll_r_e_m_e_m_b_e_r_. (keep a note in your diary / remember).
appear v.扮演,登台 appearance n.外貌 disappear v.
We can’t judge by his – appearance
disappearance n.
appear as : 扮演...角色
stage n. 舞台 阶段
• on the stage： • 在舞台上 • in the stage： • 在某一阶段
www.wondershare.com
怎么保持容颜青春永驻
每天一斤水果 一杯牛奶（不含三聚氰胺） 一小时有氧运动（较缓和的运 动） 一个友情故事（书 …… ） 一个爱情故事（尽量 少看电视 伤皮肤的！） 一个笑话故事
at least 至少
in spite of this 尽管
grown up 成长
conj. = because 因为（2） e.g. I cannot come as I am busy. = at the time when（3） e.g. As I was leaving the house , the postman brought a letter.. = in the way that 按照…的方式（4） e.g. Do as you are told.
Listening to the tape and answer the questions:
What is my aunt? How old is she? What does she wear in her new play? What does she answer if anyone asks her age? Which singer do you think looks younger than his/her age? Would you like to be always young? And why? Do you like to guess others age or not?
(not,send) her away . 10.He _w_il_l_w_a_t_c_h_(watch) TV ,if he ___is___(be) free.
Listen in class, or you won’t understand what to do.
If you don’t listen in class, you won’t understand what to do.
2.-It’s late, but I don’t want to go to sleep. -If _y_o_u_d_o_n_’_t _ge_t_e_n_o_u_g_h_s_l_ee_p_,_y_o_u_’l_l_fe_e_l_t_ir_e_d_a_t_s_c_h_ool. (not get enough sleep/ feel tired at school).
www.wondershare.com
eg. 你必须少抽些烟。 You must cut down on smoking. I’m afraid I must go now.
eg. Must you leave now? Yes, I must./ No, I needn’t.
www.wondershare.com