重庆专用高中英语配套课件选修6unit4period2人教版.ppt

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(1)come into existence bring... into existence in existence (2)exist v. exist on existing adj. existent adj.
产生，成立 使……产生，成立 现存的 存在；实际上有 靠……生存 现行的，目前的 现有的
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2．average (1)adj.平均的；普通的；一般的 The average price of houses in this city has decreased by nearly 30%. 这个城市的平均房价下降了近百分之三十。 The average output of the factory is 20 cars a day. 该工厂的平均产量是每天20辆汽车。 There was nothing special about the TV play——it was only average. 这部电视剧没有什么特别之处——不过是一般的片子。
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3．existence n．生存；存在 Do you know when this kind of robot came into existence? 你知道这种机器人是什么时候问世的吗？ Do you believe in the existence of ghosts? 你相信有鬼吗？
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【完成句子】 ①Mary's school work is well __a_b_o_v_e__ _a_v_e_r_a_g_e_. 玛丽的学习成绩远远高于平均水平。 ②Incomes here are nowhere near ____th_e___ _n_a_t_io_n_a_l_ __a_v_er_a_g_e_. 这里的收入根本达不到全国的平均水平。 ③ ___O_n____ __a_v_er_a_g_e_ ， we receive more than 1,000 visitors a day. 平均起来我们每天接待一千多名参观者。 ④___T__h_e__ __a_v_e_r_a_g_e ____a_g_e__ of the boys in this class is fifteen. 本班男生的平均年龄是十五岁。
5．_w_i_d_e_s_p_r_ea_d__adj.existing or happening in many places or situations，or among many people 6．_a_d_v_o_c_a_te_v．to publicly say that something should be done 7．_a_v_e_r_a_g_e_adj. having qualities that are typical of most people or things；neither very good nor very bad 8．_r_e_f_r_es_h__ v. to make someone feel less tired or less hot 9．_c_o_m__m_i_t_m_e_n_t__n. a promise to do sth or to behave in a particular way 10．__c_a_s_u_a_l_adj. relaxed and not worried；not formal or
5．What are the purposes of the two letters? A．To discuss the cause of global warming. B．To ask and give advice on what to do about global warming. C．To call on people to fight against global warming. D．To say “hello” to each other. 答案
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1．widespread adj.分布广的，普通的 There is a widespread dissatisfaction among the students with the food on campus. 学生普遍对学校的饭菜不太满意。 China has attracted widespread attention throughout the world in the rapid development of aerospace. 中国在航天工业方面的迅速发展引起了全世界的普遍关注。 Dogs are becoming more widespread in urban areas. 城区里的狗越来越多了。
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Ⅳ.预读理解 1．What can we do about global warming in our house according to Earth Care? A．Do not use any electrical appliance. B．Never watch TV. C．Try to save as much electricity as possible. D．Ride a bike instead of using a car.
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3．It takes a lot of energy to make things from new materials，so, if you can，buy things made from recycled materials. [信息提取] it作形式主语，代指后面的动词不定式 to make things from new materials [例句仿写] 我们花费三年时间才完成了这项工程。 It took us three years ___t_o____ c_o_m__p_l_et_e_ ____t_h_e__ _p__ro_j_e_c_t_.
not for a formal situation
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Ⅱ.短语天地 1．__i_n_st_e_a_d___o_f _代替；而不是 2．_th__e_d_e_v_e_lo_p__ed__c_o_u_n_t_r_ie_s__发达国家 3．__a_s_w__e_ll_a_s___也；又；而且 4．_h_a_v_e__a_n_e_f_fe_c_t_o_n_____对……有影响 5．_o_n_b_e_h_a_l_f_o_f__代表……一方；作为……的代言人 6．put up with_容__忍__；__忍__受___ 7．on the whole_大__体__上__；__基__本__上___ 8．and so on____等__等______ 9．as a result of_作__为__…__…__的__结__果__ 10．so long as___只__要_______
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widespreadly adv. It is widespreadly known that... widespread damage widespread confusion n.
大大地，广泛地 很多人知道…… 大面积的损坏 各处呈现的混乱
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【完成句子】 ①The project has received _w__id_e_s_p_r_e_a_d__ _p_u_b__li_c__ _s_u_p_p_o_r_t_. 这个项目得到了公众的普遍支持。 ②Computers are now ___i_n____ __w__id_e_s_p_r_e_a_d_ ____u_s_e__. 计算机现在被广泛应用。 ③_U__n_e_m_p__lo_y_m__e_n_t ___is__ _w_i_d_e_s_p_re_a_d__ in some countries. 有些国家失业现象普遍。 ④The earthquake caused ___w_i_d_e_s_p_r_e_ad____d_a_m_a_gteo the city. 地震给这个城市带来了大面积的损坏。
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4．From the first letter we know Ouyang Guang is
most probably a________.
A．school teacher
B．schoolboy
C．young parent
D. newspaper boy
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2．According to Earth Care，after drinking a cola，we should________. A．throw the can away B. buy another one C．start working as soon as possible D．keep the can for r
3．What can we do by simply using our mouth? A ． Persuade our parents to buy energysaving products. B．Pass the knowledge of global warming to other people. C．Plant trees in our garden of school. D．Both A&B.
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above/below(the) average
在平均水准以上/以下
on (the/an) average
平均地
up to (the) average
达到平均的(地)
the average age/temperature/rainfall
平均年龄/气温/ 降雨量
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(2)n. 平均；平均数 Do you know how to work out an average? 你知道如何计算平均数吗？ On average we receive five letters each day. 我们平均每天收到五封信。 Tom's work at school is above(the) average ， while Harry's is below(the) average. 汤姆的在校功课在一般以上，而哈利的在一般以下。
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2．It is OK to leave an electrical appliance on so long as you are using it—if not，turn it off! [信息提取] so long as/as long as只要 [例句仿写] 只要你高兴，做什么都没关系。 ___A_s____ ___lo_n_g___ ____a_s___ ___y_o_u___ ___a_r_e___ __h_a_p__p_y_，it doesn't matter what you do.
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Ⅲ.句型搜索 1．As I'm not sure where to start with my project，I would appreciate any suggestions you may have. [信息提取] where to start with my project为“疑问词 ＋不定式”结构(疑问词who，what，which when， where，how等后面皆可跟不定式) [例句仿写] 麻烦在于到哪儿找这么多的小船。 The trouble is __w__h_e_r_e_ ____t_o___ ___f_in_d___ ___s_o____ __m__a_n_y__ __b_o_a_t_s__.