仁爱九年级上册第二单元Unit 2 Topic2 Section D(共15张PPT)

3. ——Tu—rn—o—ff t—he—ta—ps—in—ti—m—e —— 4. —T—ak—e a—sh—ow—er—in—ste—ad—of—a b—at—h —
5. S—to—p t—he—fa—ct—ori—es—fr—om—p—ou—ri—ng—w—ast—e w—a—ter—in—to rivers. 6. ——Do—n—’t t—hr—ow—l—itte—r —int—o —the—w—at—er———
7. _A_f_te_r_w_e__w_a_s_h_c_lo_t_h_e_s_o_r_v_e_ge_t_a_b_le_s_, _w_e_c_a_n_r_e_u_s_e__ … the water to clean the floor.
stop…from…, pour…into…, turn off, tap(水龙头), wash clothes/vegetables, clean the floor, throw…into…
1. Why is our earth thirsty when ¾ of the earth is covered with water? Because about 97% of the water on the earth is sea water and we can’t use it for watering plants or drinking directly.
can’t live without water.
water on the earth
While there is so much water around the world, Nweeahrluymtharnese aforuertshtsillosf hthoerteoafrtdhriisnkcionvgerwedatwerit.h water.
5. Although the world is hungry, it is even t_h_ir_s_t_ie_r(更渴的)
6. While ___n_e_a_r_ly____(几乎，差不多)¾ of the earth is covered with water, we are still short of drinking water.
Read aPnadraagnraspwhe2r.and mark T or F. • How can we avoid a serious water shortage?
( FfFSiei)erlcsdSot.c,niedwn,etwisshetsosuhhlaodvuseldanv’ptermowataedtcetraoanunyrdwpnraotget rrwerasessstoeinuirtt.cheiss ( Fan) dWnaotterpoisllureteustehdemn.owhere. ( TdTah) yirP.de,opwlee’shnoeueld fdoisr cwoavter wisaiynscrteoarseiunsgedwayatbeyr.
My dear friends, Water is very important to human beings. Let’s do something to protect and save it. First, ____________________ . Second,_______________________________. Third, _______________________________. Let’s try our best to save water and our planet.
2. What kind of water can humans drink and use? Humans can only drink and use fresh water from places including rivers, lakes and underground.
( ) How can we avoid a serious water shortage? First, we should save water and not waste it. Second, we should protect our water resources and not pollute them. Third, we should discover ways to reuse water. Scientists have made some progress in this field. Today, some large cities are reusing their water. But people’s need for water is increasing day by day. We still don’t have enough water. What else can we do?
/几S'n乎oɪ、əd将loɪ近a/ nim3a/4ls and plants. be sho被rt…of…缺覆乏盖……
Do you know why?
( )Although the world is hungry, it is even thirstier. While nearly ¾ of the earth is covered with water, we are still short of drinking water. This is because about 97% of the water on the earth is sea water. So we can’t use it for watering plants or drinking directly. Humans can only drink and use fresh water from places including rivers, lakes and underground.
2. 在地球上
3. use sth for sth/doing sth 3. 用某物做某事
4. 5. 6.
avoid make in the
s(fstiehooylmnedaeer)bb领pyy域roo;yn场geera地er,s田s地一 一个 年接 年456... 一取 在避个得这免（个某一领事些域）进步
• Q: How can we change sea water into fresh water? • We need to take the salt away from the sea
water.
Enjoy Reading
1. be short of
1. 缺乏……
2. on the earth
Summary
We learn: 1. some words: avoid, discover, thirsty,
nearly, law 2. some phrases: day by day, be short of 3. some sentences: (1)But people’s need for water is
2.Summarize and use the indefinite pronoun and adverb correctly.
3. Write a proposal.
Homework
3. Write a proposal( 提议) about saving water to all the students in your school.
Listen to Paragraph3 and fill in the blanks
( ) The sea__s_e_e_m_s_t_o__ have the best answer. There is __p_l_e_n_ty_o_f_water in the sea. But we need to _ta_k_e_the salt _a_w_a_y_from the sea water . This is very expensive. If scientists can find cheaper ways to do it, we can ___s_o_lv_e_t_h_e _p_ro_b__le_m___of the shortage of water.
increasing day by day. (2)While nearly ¾ of the earth is covered
with water, we are still short of drinking water.
We can: 1.Talk about ways of saving water.
_________________பைடு நூலகம்____
Unit 2 Saving the Earth Topic 2 All these problems are very
serious.
Section D
仁爱版英语 九年级上
Movie
What can you learn form the short movie? Water is important. Because humans, animals and plants
7. day by dsateyp by step 一步步7. 一天天
8. seem to do sth
8. 似乎/好像做某事
9. plenty of
9. 大量的
10. take away
10. 带走、拿走
11. the shortage of
11. ……的缺乏
1. If we want to use the sea water, we must __ta_k_e__aw__ay_(拿 走） the salt from the sea water.
• We should protect and save water.
less fresh water
Water pollution
How to protect and save water?
Example:
1. Pass laws(
n.法律) against water pollution.
2. Collect and reuse waste water.
2. How can we __a_v_o_id____(避免) a serious water shortage?
3. We should _d_is_c_o__v_e_r __(找到) ways to reuse water.
4. People’s need for water is increasing _d_a_y_b__y_d_a_y___(一 天天).