英语：unit22 lesson3 natural disasters课件(北师大版选修8)

Lesson 3 Natural Disasters
Look at the following pictures and what are happening in the pictures?
earthquakes
droughts
tsunami
floods
volcanic eruptions
5. I _m_i_s_u_n_d_e_r_st_o_o_d_ the question and failed the exam .
6. I _o_v_er_s_l_e_p_t yesterday and arrived an hour late for class .
7. A lot of houses collapsed in the earthquake because of _s_u_b_-s_t_a_n_d_a_r_d_ construction .
(1) 他站在那里,手被帮在一棵树上。 He stood there, with his hands tied to a tree.
(2) 他头高昂着走了进来. He came in with his head high.
• wipe out: (1) get rid of / remove: 清除, 除去
Exercise 6 Complete the sentences with words from the above exercise in a suitable form.
1. After the storm they had to _re_b_u__il_d. 2. Many people in the developing world
A disease almost wiped out the population of the island.
• risk : vt./n. 冒险 e.g. You are to take risks to get what
you want, but you must not risk your life ! at risk 处于危险之中, 作表语或者状语
e.g. Wipe out these unhappy things
between you and her . (2) destroy completely : 毁灭, 消灭
e.g. At last, the army led by Mao Zedong wiped out the enemies .
With nothing to do, I will go to the cinema . With his work finished, he went back home. He lay there, with his eyes looking at the sky. Who lives in the room with the light on?
Fill in the blanks about the text.
In the last _te_n_ years , there are more and more disasters such as f_l_o_o_d_s , _d_r_o_u_g_h_ts_, windstorms, earthquakes, t_y_p_h_o_o_n_s_, volcanic _er_u_p__ti_o_n_s_and _fo_r_e_s_t fires all over the world. Why are so many disasters ? One of the reasons is over- _p_o_p_u_l_a_t_io_n_.
risk it: 冒风险试试 I don’t dare to risk it, it’s too dangerous.
plunge: vt./vi. 投入(某物) 使陷入; 突入
Don’t plunge your hand into cold water. What plunged the country into the war?
1. What is the attitude of the journalist towards the future ? Pessimistic.
2. Who are most likely to be the victims of natural disasters? Poor people.
5. What could be the biggest threat to the planet in the future? A volcanic eruption.
6. What effects might this threat have? It might plunge the planet into winter for years.
_In_ addition, c_l_im__a_t_e change and the spectre of global w__a_r_m_i_n_g_ caused by the mismanagement of the world’s resources can lead to the disasters or make them worse.
• result in: have as a consequence 造成……的结果,导致
e.g. It is their carelessness that resulted in the accident.
• result from 是由。。。造成的 e.g. It all resulted from jealousy.
8. Floods are not _u_n_u_s_u_a_l these days; they happen more and more often.

e.g. He walked along with his head down/ with his face red He is waiting for you with a magazine in his hand. With you monitor in my class, I will be in charge of the class easily.
hurricanes
forest fires
typhoon
landslides
Discussion
What do you think causes the disasters, people or nature?
unnatural
Read the text again and answer these questions:
suffer from diseases because they are _u_n_d_e_r_n_o_u_r_is_h_e_d_. 3. Our team was knocked out in the _se_m__i_-f_in__a_l of the competition.
4. The bomb was about to go off but the experts managed to _d_e_fu_s_e_it .
6. quantities of 大量 a quantity of 7. for instance for example
8. within the range of 在…范围内 9. at risk 有危险，冒险 10. in some degree 在某种程度上说 11. plunge into 使陷入，遭受。。。 12. on top of … in addition
Language Points
Important phrases
1. on record 记载下来的，有记录的 2. result in 产生。。。结果，导致 区别于
result from
3. wipe out 消除，毁灭 4. turn on 打开，攻击，袭击 5. at the rate of 以…速度 at the speed of
At present, volcanoes and earthquakes are more _d_a_n_g_e_r_o_u_s with the fast _g_ro_w__th_ of people . Earthquakes take the lives of 1.6 million People in the last hundred years. What is worse, the disaster professionals predict that the things will get w__o_r_s_e.
at/ take/run the risk of 冒……的危险 He saved my life at the risk of losing his own. They were ready to run/take the risk of being taken prisoner by the enemy.
3. Why are there now more hurricanes, floods and droughts ? Overpopulation and mismanagement of the world’s resources.
4. Why are volcanoes and earthquakes more dangerous now ? Because half the world’s population lives in cities within range of volcanic eruptions and earthquakes.
• With 的复合结构: with +n./pron. + adj./ adv./prep phrases /n /doing / done /to do with + object + object complement With 的复合结构在句子中可以做伴 随状语,也可以做原因状语和后置定语