2020-2021学年高中英语(新教材)人教版选择性必修一课件：Unit 5 Using Language

Ⅰ. 文本整体理解: 理清文章架构
Ⅱ. 文本细节理解: 探寻语篇细节信息 1. Why did many farmers welcome the introduction of chemical farming? A. They can fight crop disease and increase production. B. They harm both the land and people’s health. C. They can help produce rich soil. D. They are not expensive.
2. What concerns many people about the use of pesticides? A. Pesticides can damage the land. B. Chemicals can stay in the soil for a long time. C. Pesticides can kill harmful bacteria and insects. D. Chemicals may make people ill and even cause cancer.
(5) _F_o_o_d__sh__o_rt_a_g_e_s_a_r_e_w__id__es_p_r_e_a_d_in some African countries. 在某些非洲国家食物短缺的情况很普遍。
2. prohibit vt. 禁止; 阻止(prohibited, prohibited) *In fact, some pesticides like DDT have been prohibited in most countries because of the damage they cause to people and the environment. 事实上, 一些杀虫剂, 如DDT, 因为它们对人和环境造成 的损害, 在大多数国家已经被禁止。
insects and crops grown with chemical fertilisers usually grow _t_o_o_f_a_st_to be full of nutrition. As a result, many people worry they may make them ill and even cause cancer.
3. Why do organic farmers change the kind of crop grown in each field every few years? A. It helps put important minerals back into the ground. B. It can avoid damage to the environment. C. It can help increase output. D. The writer didn’t tel_e_c_ts__w_e_r_e_w__id_e_s_p_r_e_a_d_(影响是广泛的). More than 90% of Microsoft’s 2, 280 employees in Japan later said they were impacted by the new measures, according to the company. (4) _T_h_e_r_e_i_s_w__id_e_s_p_r_e_a_d_s_u_p_p__o_rt_for the new proposals. 新提议获得了广泛的支持。
1. widespread adj. 分布广的, 普遍的, 广泛的 *Chemical pesticides and artificial fertilisers have been in widespread use in farming since the middle of the 20th century. 自20世纪中叶以来, 化学杀虫剂和人工肥料在农业中 被广泛使用。
_th_e_y__b_r_o_u_g_h_t_u_s__to_o__m_a_n_y__p_r_o_b_l_e_m_s_a_s__w_e_l_l._F_i_r_s_tl_y_, _th__ey__d_e_s_tr_o_y_e_d__th_e__s_o_il_. _. _. _
(2)Do you have a good idea that puts sufficient food on the dinner table while keeping people and the environment as healthy as possible? _I_n_m__y__o_p_in_i_o_n_,_w_e__s_h_o_u_ld_._._.__
Ⅱ. 根据语境, 选词填空 in addition, in turn, because of, as for, as well, for instance 1. I’ll do some reading for fun, and for knowledge _a_s_w_e_l_l . 2. Theory is based on practice and _in__tu_r_n_serves practice.
3. 阅读主题活动 Talk about the following questions in pairs, and
share your ideas with your classmates. (1)What other disadvantages of chemical farming do you know? List as many as you can. _A_s_t_h_e__sa_y_i_n_g__g_o_es_,_“_E__a_ch__c_o_in__h_a_s_t_w__o_s_id_e_s_._”_ _A_l_th_o_u__g_h_C__h_e_m_i_c_a_l _fa_r_m__i_n_g_s_e_r_v_e_s_u_s_e_n_o_u_g_h__f_o_o_d_,
plant diverse crops that use different _d_e_p_th__s of soil to help keep it rich. But organic farming is nowhere near able to _m__e_e_t the high demand for food. Therefore, there is still a long way to find a _su__it_a_b_le_ solution that puts sufficient food on the dinner table while keeping people and the environment as _h_e_a_lt_h_y_ as possible.
2. 课文概要填空 With the development of society, chemical
pesticides and artificial fertilisers have been in _w_i_d_e_sp_r_e_a_d_ use in farming for many years. They can help fight cropd_i_s_ea_s_e_ and increase production. However, they can cause many problems _a_s_w__el_l. For instance, pesticides can kill _h_e_lp_f_u_l_ bacteria and
【词块积累】 (1)a widespread disease in widespread use (2)widely
流行病 广泛应用 adv. 广泛地, 大大地
*English is widely spoken in the world. 英语在世界上被广泛使用。
【即学活用】
(1)The consequence of a rising sea level would be _w_i_d_e_s_p_r_ea_d__f_lo_o_d_i_n_g_(到处洪水泛滥). (2)Warm winter may cause a _w_i_d_e_s_p_r_e_a_d_d_i_s_e_a_se_(流 行病).
4. Why can’t we stop the use of man-made chemicals in agriculture entirely? A. Organic farming cost us a lot of money. B. Organic farming can meet people’s need. C. Chemical farming brought us huge profit. D. Chemical farming helps serve the need for food.
To tackle this problem, farmers use natural waste as f_e_r_ti_l_is_e_r_ and they often change the kind of crop grown in each field every few years and they also
Unit 5 Working the Land Using Language
Ⅰ. 根据语境及汉语提示写出正确的单词 1. _c_h_e_m_i_c_a_l (化学的) change 2. _a_l_le_v_i_a_te_ (减轻) the sufferings 3. out of _p_o_v_e_r_ty_ (贫穷) 4. _o_r_g_a_n_ic_(有机的) farming 5. a _w_i_d_e_sp_r_e_a_d_ (分布广的, 流行的)disease
*(2019·浙江高考)Mclntyre and his colleagues documented a widespread death of big trees that was evident even in wildlands protected from woodcutting or development. Mclntyre和他的同事发现大树的广泛死亡, 即使在禁 止砍伐和开发的野生土地上也很明显。
答案: 1～4. ADAD
Ⅲ. 文本素养提升: 阅读技能综合运用 1. 根据课文语境与语句知识细致解构语句
译文: 为什么种植不同的作物是因为它们把重要的矿 物质放回地下, 使它为下一批作物再次做好准备。 分析: 本句is前面是why引导的主语从句, is后面是 because引导的表语从句。主语从句和表语从句中的 语序都是陈述句语序。making 在这里是动词-ing形式 短语作结果状语。
3. I met some friends and other acquaintances _in__a_d_d_i_ti_o_n_. 4. _A_s__fo_r_parents, nothing can be compared with their children’s physical and mental health.
6. _d_i_g_e_st_(领会) the contents of the book 7. smoking is _p_r_o_h_i_b_it_e_d_(禁止) 8. food is _e_s_se_n_t_i_a_l (极其重要的) to life 9. _a_lt_e_r_n_a_t_iv_e_ (可替代的)energy 10. agree _e_n_ti_r_e_ly_(完全地)
5. There are jobs more dangerous than truck driving; _f_o_r_i_n_st_a_n_c_e_, training lions.
6. _B_e_c_a_u_s_e_o_f_the help you gave me that summer, my life changed.