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1、Unit 5 Water,第2课时 Reading,Module 3 Natural elements,广东学导练 七年级 下册 配上海教育版,一、根据汉语意思补全下列句子，每空一词 1. Im _ _ _ _ （一滴水）. 2. I _ _ _ _ （穿过管道）under the streets and now Im here. 3. _ _ _ _ （记得不要浪费）or pollute me. 4. Is this _ _ _ (终点） your journey? 5. _ _ _ _ （是的时间了） people to clean me.,a,drop,of,water,travelle
2、d,through,the,pipes,Remember,not,to,waste,the,end,of,Its,the,time,for,二、汉译英 1. 水龙头是开着的。 _ 2. 多拉环顾四周，但是那儿一个人都没有。 _ 3. 他们将我清理干净并且加入一些化学物质。 _ 4. 我将会进入河里，并再一次进入海里。 _ 5. 多拉关上了水龙头，离开了浴室。 _,The tap was on.,Dora looked around, but there was no one there.,They cleaned me and added some chemicals to me.,Ill g
3、o into the river and then into the sea again.,Dora turned the tap off and came out of the bathroom.,【1】“Turn that tap off,” said an angry voice. 一个愤怒的声音说道：“关掉那个水龙头。” 【用法】 turn off “关掉；关闭”，反义词是turn on“打开”。 注意：off/on是副词，其后接名词时，名词放在off/on的前后均可，接代词时，必须放在turn和off/on的中间。 【例句】 The light is a bit too harsh.
4、 Please turn it off. 那灯光有点太刺眼，请把它关掉。 Its time for the news. Please turn on the TV. 新闻时间到了，请打开电视机。,【拓展】 （1）turn on=switch on，意为“拧开（电器）；打开（水源、煤气、电源等）”。 Please turn on the radio. 请把收音机打开。 （2）turn off=switch off，意为“关掉（电器）；关上（水源、煤气、电源等）”。 Have you turned off the TV? 你关电视了吗？ （3）turn up 意为“调高（音量或热度）”。 I tu
5、rned the volume up. 我把音量调大了。 （4）turn down 意为“调低（音量或热度）”。 He kept turning the central heating down. 他不断地调低中央暖气系统的温度。,【应用】 （1）你能把电视声音调低一点吗？ Can you _ _ the TV a bit? （2）当你离开房间时要关灯。 _ _ the lights when you leave the room. 【2】Do you know where I come from? 你知道我是从哪儿来的吗？ 【用法】 此句含有由where引导的宾语从句，where I com
6、e from在整个句子中作宾语，where之后用陈述句语序。 where之后有时也可直接接动词不定式，并可与相应的宾语从句互换。,turn,down,Turn,off,【例句】 I know where your homework is. 我知道你的作业在哪里。 Can you guess where Tom is going to next month? 你能猜猜汤姆下个月去哪儿吗? Do you know where we should go next?=Do you know where to go next? 你知道下一步我们该去哪里吗？ 【应用】 （ ）I dont remember
7、 _ the book yesterday. A. where did I put B. where I put C. where I should put,B,【3】Then it was time for people to clean me. 然后到人们清洁我的时间了。 【用法】 Its time （for sb.）to do sth. 意为“是 （某人）做某事的时间了；（某人）该做某事了”，相当于 Its time for sth. 。 【例句】 Its time for us to have class.=Its time for class. 到上课的时间了。 【应用】 （ ）It
8、s time for the students _ at the school gate. A. gathering B. to gather C. gather,B,一、用所给单词的适当形式填空 1. “Turn that tap off,” Tom said _ （angry）. 2. The water _ （drop）into a river and ran into a reservoir from the cloud. 3. It was time for students _ （clean）their desks. 4. Remember _ （not waste）the wat
9、er. 5. We cannot live without water, so it is very _ （value）. 6. I drank a lot of water because the dish was very _ （salt）.,angrily,dropped,to clean,not to waste,valuable,salty,7. Marie Curie is one of the greatest _ （chemical） in the world. 8. The dish _ （be） too sweet if we add more sugar. 9. Ther
10、e _ （be） some milk and two apples in the fridge. 10. Having a bath uses _ （much） water than taking a shower.,chemists,will be,is,more,二、阅读理解 Do you know how the rain forms? The rain is water. Most of the water in the world is in oceans, rivers and lakes. The tiny （极小的）water in the air comes from the
11、re. Do you know how this happens? The water cycle of the Earth begins with a change in temperature. When the Sun heats the Earth, water from oceans, lakes and rivers evaporates （蒸发）. It turns into vapour and rises into the air. Finally, clouds form and the water drops back to the Earth as rain. The
12、rain flows into rivers, oceans or lakes again. This is the water cycle.,Condensation （冷凝）also plays an important role in the water cycle. The air far up in the sky is very cold. When the warm air rises from the Earth and meets the cold air, a lot of droplets （小水滴）form. This is condensation. When the
13、 water drops are too heavy to be in the air, they fall out of the clouds as rain. The rain runs into the Earths oceans, rivers and lakes. Then the cycle starts all over again! （ ）1. Where does the tiny water in the air come from? A. The rain. B. The vapour. C. The oceans,rivers and lakes. D. The Sun
14、.,C,（ ）2. _ is a necessary process for the water cycle. A. The vapour B. Condensation C. The rain D. The clouds （ ）3. What makes the water cycle become possible? A. The river. B. The Sun. C. The change in temperature. D. The rain. （ ）4. When the rain drops and runs into the oceans, rivers or lakes, _ starts all over again. A. the condensation B. the droplets C. the water cycle D. the evaporation,B,C,C,一、根据教材P59的课文内容，补全下面短文，每空一词 Dora talked to a 1. _ of water in the 2. _. The drop of water told Dora to t
