高中英语必修三unit2-课件
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4. The strong wish to know about curiosity something
5. Someone who buys things or services customer from a shop, company, etc
6. A particular quality that gives benefit someone or something an advantage
We must dare to think, speak and act. 我们必须敢想、敢说、敢做。
I wonder how he dares (to) say such things. 我纳闷他怎么竟敢说出这样的话来。
dare的过去式问题 情态动词dare可以有过去式dared，但也可 以直接用dare表示过去式，或后接动词完 成式。如：
You _h_a_v_e__to_ mix the flour and the butter. 你必须把面粉和黄油和在一起。
In England traffic _m_u__st_ keep to the left. 在英国，车辆必须 靠左行驶。
All passengers _m__u_s_t_ wear seat belts. 所有乘客都必须系安全带。
How dare you to say such a thing?
He daren’t to speak English before such a crowd, did he?
He daren’t speak English before such a crowd, dare he?
表示推测——情态动词的重要用法
These dishes need be cleaned carefully. These dishes need to be cleaned carefully. These dishes need cleaning carefully.
How dare you say such a thing?
must / have to
must的用法 1. 表示主观的义务和必要, 主要用于肯 定句和疑问句, 意思为 “必须……， 得……，要……”；由must 引起的疑问 句，肯定回答要用must或have to, 否定回 答要用needn’t或don’t have to, 意思是 “不必” ； must的否定形式mustn’t表 示
Answer key for exercise 3 on page 12
1√ pear; × cream ( fat and all the others are fruit ) 2 √ sugar ; × mutton (meat and all the others are energy –giving food) 3 √ bacon ; × cabbage (vegetable and all the others are meat ) 4 √ strawberry ; × eggplant (vegetable and all the others are fruit )
become thinner -----lose weight
Being laughed at by her friends ----- losing face
felt so sad and hopeless about yourself ----- lost heart
Was unwilling to visit any more ----- lost interest in visiting
She felt so sad and hopeless about herself and her behaviour changed. She didn’t dare to face her boyfriend and she was unwilling to visit her friends any more. Luckily, her best friend Fred came to see her and encouraged her to exercise, eat a _b_a_l_a_n_c_e_d_ diet and enjoy life again. Soon Julie became amazingly _e_n_e_r_g_e_ti_c_ and _s_l_im__! She felt very happy.
That was why he dared do so. 那就是他为什么敢这样做的原因。
Mother dare(d) not tell father she‘d given
away his old jacket. 母亲不敢告诉父亲她把他的旧上衣送人了。
dare后通常不接动词的进行式。
判断正误:
Nobody need to be afraid of catching the disease. Nobody need be afraid of catching the disease.
need / dare
情态动词 (+动词原形)
1.无人称和数的变化; need 2.尤其用于：
*否定句及疑问句中;
*在if/whether之后; .
*或与hardly, never,
dare
no one, nobody连用; 3.常以needn’t 和daren’t
的形式出现;
4.dare有其过去时dared.
禁止，意思是“不能, 不许”。如： —Must I finish the task right now?
我现在必须完成这个工作吗？ —Yes, you must. / Yes, you have to.
是的。 (—No, you needn’t. / No, you don’t
have to. 不, 不必。)
行为动词
多用于肯定句;
(sb.) need to do dare to do
need to be done need doing
注意对need问句的回答: --Need I finish the work today? --Yes, _y_o_u__m_u_s_t________.
No, _y_o_u__n_e_ed__n_’t______. No, _y_o_u__d_o_n_’t__h_a_v_e_t_o_. needn’t 对其它情态动词的回答: --Shall I tell John about it? --No, you _n_e_e_d_n_’t__(d_o_n_’_t_h_a_v_e__to_)__. --Must we do it now? --No, you n_e_e_d_n_’_t_(_d_o_n_’_t_h_a_v_e_t_o_)__.
上面的空你都填对了吗？ 如此多的情态动词， 我们应当如何使用呢？ 接下来就进行详细 的讲解。
ought toห้องสมุดไป่ตู้should
should 和ought to 都为“应该”的意思， 可用于各种人称。ought to 的语气稍重 一些。 You ought to (should) follow your teacher’s advice.
高中英语必修三unit2-课件
Answer key for exercise 1 on page 12
1. Something that you say is not true lie
2. Not to be punished for something get away it
3. Uncooked raw Discovering useful words and expressions
泰坦尼克号应该是部好电影。 Titanic _s_h_o_u_ld_ be a good movie.
We know if we keep at it we _s_h_o_u_l_d_ succeed. 我们知道如果我们坚持 下去就应该会成功。
冬天的时候，我们不得不 穿上温暖的衣服。 We _h_a_v_e_t_oput on warm clothes in winter.
注意
should 和ought to 后面跟动词不定式的 完成式, 其肯定句表示”过去应该做而 未做”, 其否定句则表示”过去不该做 但做了”。
You should/ought to have made the decision a week ago. I shouldn't have made such a foolish mistake.
Unit 2
Modal Verb II
Fill in the blanks according to the Chinese.
我认为她应该向公众道歉。 I think she o_u_g_h__t _to_ apologise to the public.
You _o_u_g_h_t_t_o_ go and see the doctor. 你应当去找医生看看病。
dare可用实意动词和情态动词，用作情 态动词时，意思是“敢”，其后接动词 原形，通常只用于否定句或疑问句以及if 或whether之后，一般不用于肯定句。如： Dare you tell her the truth？ 你敢告诉她事实真相吗？
I don’t know whether he dare try. 我不知他是否敢试一试。
Answer key for exercise 2 on page 12
balanced diet raw slim lose weight lose heart
ought to energetic
lose interest lose face
Julie wanted to become thinner. She knew she _o_u_g_h_t_t_o_ eat more vegetables and fruit but little meat. However, as she was so afraid of being laughed at by her friends, she did not consult a doctor but lived on a _d_i_e_t_ of rice, _r_a_w__ vegetables, bananas and lemons. Three weeks later, she found she weighed as much as ever.
I daren’t ask her for a rise. 我不敢要求她加薪。
dare用作实意动词时意为“敢于”，可以 有各种词形变化，可用于各类句型（肯定 句、否定句、疑问句及各类从句等），其 后多接带 to 的不定式，有时 to 也可省去 （尤其是在否定句或疑问句），可用于非 谓语形式，完成时态等。如：
情态动词 对将来 对现在 对过去
表示主语的义务或责任：
You should take care of your sister. 你应当去照顾你妹妹。 或指出一个正确、明智的动作： They shouldn't allow parking here； the street is too narrow． 这儿不该允许停车；马路太窄了。
have to 的用法 1. must表示一种主观的需要，而have to 表示一种客观的需要，意思是 “不得不”。 如：
I have to attend an important meeting this afternoon. 今天下午我不得不参加一个重要的会议。
Mother is out, so I have to look after the shop. 妈妈不在家，因此我不得不照看商店。 2. have to 的否定形式是don’t have to, 相当于needn’t。如： They don’t have to buy a computer at present. 他们目前没有必要买电脑。
5. Someone who buys things or services customer from a shop, company, etc
6. A particular quality that gives benefit someone or something an advantage
We must dare to think, speak and act. 我们必须敢想、敢说、敢做。
I wonder how he dares (to) say such things. 我纳闷他怎么竟敢说出这样的话来。
dare的过去式问题 情态动词dare可以有过去式dared，但也可 以直接用dare表示过去式，或后接动词完 成式。如：
You _h_a_v_e__to_ mix the flour and the butter. 你必须把面粉和黄油和在一起。
In England traffic _m_u__st_ keep to the left. 在英国，车辆必须 靠左行驶。
All passengers _m__u_s_t_ wear seat belts. 所有乘客都必须系安全带。
How dare you to say such a thing?
He daren’t to speak English before such a crowd, did he?
He daren’t speak English before such a crowd, dare he?
表示推测——情态动词的重要用法
These dishes need be cleaned carefully. These dishes need to be cleaned carefully. These dishes need cleaning carefully.
How dare you say such a thing?
must / have to
must的用法 1. 表示主观的义务和必要, 主要用于肯 定句和疑问句, 意思为 “必须……， 得……，要……”；由must 引起的疑问 句，肯定回答要用must或have to, 否定回 答要用needn’t或don’t have to, 意思是 “不必” ； must的否定形式mustn’t表 示
Answer key for exercise 3 on page 12
1√ pear; × cream ( fat and all the others are fruit ) 2 √ sugar ; × mutton (meat and all the others are energy –giving food) 3 √ bacon ; × cabbage (vegetable and all the others are meat ) 4 √ strawberry ; × eggplant (vegetable and all the others are fruit )
become thinner -----lose weight
Being laughed at by her friends ----- losing face
felt so sad and hopeless about yourself ----- lost heart
Was unwilling to visit any more ----- lost interest in visiting
She felt so sad and hopeless about herself and her behaviour changed. She didn’t dare to face her boyfriend and she was unwilling to visit her friends any more. Luckily, her best friend Fred came to see her and encouraged her to exercise, eat a _b_a_l_a_n_c_e_d_ diet and enjoy life again. Soon Julie became amazingly _e_n_e_r_g_e_ti_c_ and _s_l_im__! She felt very happy.
That was why he dared do so. 那就是他为什么敢这样做的原因。
Mother dare(d) not tell father she‘d given
away his old jacket. 母亲不敢告诉父亲她把他的旧上衣送人了。
dare后通常不接动词的进行式。
判断正误:
Nobody need to be afraid of catching the disease. Nobody need be afraid of catching the disease.
need / dare
情态动词 (+动词原形)
1.无人称和数的变化; need 2.尤其用于：
*否定句及疑问句中;
*在if/whether之后; .
*或与hardly, never,
dare
no one, nobody连用; 3.常以needn’t 和daren’t
的形式出现;
4.dare有其过去时dared.
禁止，意思是“不能, 不许”。如： —Must I finish the task right now?
我现在必须完成这个工作吗？ —Yes, you must. / Yes, you have to.
是的。 (—No, you needn’t. / No, you don’t
have to. 不, 不必。)
行为动词
多用于肯定句;
(sb.) need to do dare to do
need to be done need doing
注意对need问句的回答: --Need I finish the work today? --Yes, _y_o_u__m_u_s_t________.
No, _y_o_u__n_e_ed__n_’t______. No, _y_o_u__d_o_n_’t__h_a_v_e_t_o_. needn’t 对其它情态动词的回答: --Shall I tell John about it? --No, you _n_e_e_d_n_’t__(d_o_n_’_t_h_a_v_e__to_)__. --Must we do it now? --No, you n_e_e_d_n_’_t_(_d_o_n_’_t_h_a_v_e_t_o_)__.
上面的空你都填对了吗？ 如此多的情态动词， 我们应当如何使用呢？ 接下来就进行详细 的讲解。
ought toห้องสมุดไป่ตู้should
should 和ought to 都为“应该”的意思， 可用于各种人称。ought to 的语气稍重 一些。 You ought to (should) follow your teacher’s advice.
高中英语必修三unit2-课件
Answer key for exercise 1 on page 12
1. Something that you say is not true lie
2. Not to be punished for something get away it
3. Uncooked raw Discovering useful words and expressions
泰坦尼克号应该是部好电影。 Titanic _s_h_o_u_ld_ be a good movie.
We know if we keep at it we _s_h_o_u_l_d_ succeed. 我们知道如果我们坚持 下去就应该会成功。
冬天的时候，我们不得不 穿上温暖的衣服。 We _h_a_v_e_t_oput on warm clothes in winter.
注意
should 和ought to 后面跟动词不定式的 完成式, 其肯定句表示”过去应该做而 未做”, 其否定句则表示”过去不该做 但做了”。
You should/ought to have made the decision a week ago. I shouldn't have made such a foolish mistake.
Unit 2
Modal Verb II
Fill in the blanks according to the Chinese.
我认为她应该向公众道歉。 I think she o_u_g_h__t _to_ apologise to the public.
You _o_u_g_h_t_t_o_ go and see the doctor. 你应当去找医生看看病。
dare可用实意动词和情态动词，用作情 态动词时，意思是“敢”，其后接动词 原形，通常只用于否定句或疑问句以及if 或whether之后，一般不用于肯定句。如： Dare you tell her the truth？ 你敢告诉她事实真相吗？
I don’t know whether he dare try. 我不知他是否敢试一试。
Answer key for exercise 2 on page 12
balanced diet raw slim lose weight lose heart
ought to energetic
lose interest lose face
Julie wanted to become thinner. She knew she _o_u_g_h_t_t_o_ eat more vegetables and fruit but little meat. However, as she was so afraid of being laughed at by her friends, she did not consult a doctor but lived on a _d_i_e_t_ of rice, _r_a_w__ vegetables, bananas and lemons. Three weeks later, she found she weighed as much as ever.
I daren’t ask her for a rise. 我不敢要求她加薪。
dare用作实意动词时意为“敢于”，可以 有各种词形变化，可用于各类句型（肯定 句、否定句、疑问句及各类从句等），其 后多接带 to 的不定式，有时 to 也可省去 （尤其是在否定句或疑问句），可用于非 谓语形式，完成时态等。如：
情态动词 对将来 对现在 对过去
表示主语的义务或责任：
You should take care of your sister. 你应当去照顾你妹妹。 或指出一个正确、明智的动作： They shouldn't allow parking here； the street is too narrow． 这儿不该允许停车；马路太窄了。
have to 的用法 1. must表示一种主观的需要，而have to 表示一种客观的需要，意思是 “不得不”。 如：
I have to attend an important meeting this afternoon. 今天下午我不得不参加一个重要的会议。
Mother is out, so I have to look after the shop. 妈妈不在家，因此我不得不照看商店。 2. have to 的否定形式是don’t have to, 相当于needn’t。如： They don’t have to buy a computer at present. 他们目前没有必要买电脑。