2016广州初中牛津七年级英语下册Chapter 3

课题 重难点解析

复习牛津初中英语七年级下册Chapter3单词与短语 1.掌握Chapter3的单词与词组 ； 2.掌握Chapter3动词短语的固定搭配； 3.掌握Chapter3固定句型的用法； 【短语·Unit 5】 a drop of water 一滴水 be made up of 由……组成 turn off 关掉 dry up 干涸 add ... to ... 把……加入…… turn into （使）变成 travel through 经过 have a bath 洗盆浴 come out of 从……出来 take/have a shower 淋浴 a bit 有点；一点 instead of 而不是…… part of ……的一部分 pocket money 零花钱 课堂教学步骤及 内容 【练习1·选词填空】 How much of the earth is covered with water? About 75% of the Earth’ s surface is covered with water. 97%of the water on Earth is __________ water. It is __________ salt and other minerals（矿物质）. Human can not drink this water. Less than 1% of all the water on the Earth is __________ water that we can use. So water is valuable. continues made up of return fresh part of salt What is the water cycle? In the water cycle, water turns into vapour, travels into the air and becomes __________ a cloud. Then it falls down to the Earth as rain, and turns into vapour again. This - 1 -

__________ in a never ending-cycle. Because of the water cycle, the water you use today may __________ to you after many cycles. 【练习2·选词填空】 12 July Dear Diary, I talked to a water today. It was really interesting. In the morning, I left the tap on in the bathroom. Then I heard an angry_______. It told me to_______ the tap_______. It was a drop of water! It tole me about its_______. It_______ from a cloud into a river. We could not drink this water because it was dirty, so people had to clean it. They_______ some chemicals_______ the water to make it clean. Then it traveled to my home. Water is very_______. People should not waste or pollute it. added ... to journey valuable dropped turn ... off voice 【练习3·根据首字母提示填空】 1.We should save every d______ of fresh water. 2.“Be quiet,” said Tom in a low v______ to his classmate. 3.The workers a______ chemical______ the swimming pool to keep it clean. 4.Go t______ the forests and you will find a beautiful lake. 5.Time is v______. You shouldn’ t waste it. 6.Water f______ about 70 percent of an adult’ s body weight. 【练习4·根据首字母提示填空】 Water talks Dora was in the bathroom, The tap was o____. “Turn that tap off,” said an angry v_____. You’ re wasting water. Dora looked around, but there was no one there. “Who are you?” - 2 -

“I’ m a d_____ of water. Do you know where I come from?” “From the tap?” asked Dora. “A few days ago, I was in a cloud,” said the drop of the water. “Then I dropped into a river and ran into a reservoir. Then it was time for people to clean me.” “Clean you?” Dora asked. “Yes, I was dirty. They cleaned me and added some c_____ to me. Then I travelled t_____ the pipes under the streets and now I’ m here.” Dora asked, “So is this the end of your j_____?” “No. People will make me clean again.” I’ ll go into a river and then into the sea again. “Again?” “Yes. My journey starts there. Remember not to waste or pollute me. I’ m v_____.” Dora turned the tap off and came out of the bathroom. 【练习5·根据提示完成表格】 The Amazon River（亚马逊河）is in the south America. It is 6440 kilometres long and is the second longest river in the world. The Amazon River begins in the high mountains of Peru（秘鲁）. It then crosses over into Brazil. Most of the Amazon is in Brazil. Finally, it ends in Atlantic Ocean. While（虽然）in Peru the river is very small, it is 240 kilometres wide by the time to the sea. The Amazon River has more water than any other river in the world. In the river, there are over 2000 different kind of fish. Along the Amazon River are some of the wettest places in the world, and kilometres and kilometres of forests. Many of them are very different from the ones in China. There are also many strange plants along the Amazon. Some of these are quite important to people because we can make medicine from them. - 3 - The Amazon River Length:________________ Width:________________ Begins in________, runs through________, and ends in___________ Importance Has__________than any other river in the world. Has over________ different kinds of___________ along the Amazon. There are kilometres and kilometres of__________ along the Amazon. There are many animals; many are very_________ from those in China. There are many____________; some are quite important to people because we can_______________ from them. 【练习6·完形填空】 On and under the water The deepest part of the sea in the world is called the Mariana Trench（马里亚纳海沟）. It is in the Pacific Ocean. In 1995, a Japanese submarine（潜水艇）called the Kaiko went down almost 11000 metres into the Mariana Trench. Scientists found that___________ fish and some other animals living in the darkness. It is not______ for people to dive deep into the ocean. Humans cannot go down much deeper than about thirty metres under water________ the pressure（压力）on the ears and lungs（肺）. ______if a diver wears a specials diving suit（潜水服）, he or she can go down six hundred metres. Hawaii, in the Pacific Ocean, is a tourist area. It is a very nice place. There are a lot of_________there. But this one is special. It is under water. Well, part of it is. ______ opened it in 2000. It has four floors_______ water and four below. But its eighty bedrooms are all below sea level. You can see fish______ outside your bedroom window. - 4 -

1. A. there is 2. A. easy 3. A. because 4. A. So 5. A. fish 6. A. It 7. A. on 8. A. swimming 【短语·Unit 6】 B. there was B. difficult B. because of B. And B. hotels B. They B. under B. playing C. there are C. exciting C. for C. But C. people C.Its C. above C. eating D. there were D. interesting D./ D. When D. water D. Them D. in D. running solar/water/wind power 太阳能/水能/风能 a packet of 一袋…… in a way 在某种程度上 be connected to 连接到 power station 发电站 a moment machine 过了一会 washing machine 洗衣机 rice cooker 电饭煲 switch off 关（电灯、机器等） tidy up 收妥好；整理好 air conditioner空调 safety tips安全提示 electrical appliance 电器 switch on 开（电灯、机器等） start a fire 引起火灾 make sure 确保 【练习1·根据首字母提示填空】 Electricity all round One evening, Daisy said, “I’ m going to buy a p_____ of sweets. Does anyone want anything?” Benny, Daisy’ s brother, r_____, “Can you get me a packet of electricity?” “Yes, I can,” said Daisy. Then she went out. Benny laughed, “She can’ t buy e_____ in - 5 -

packets like sweets! She’ ll look foolish.” Mum said,\’ t say that, Benny!” “What do you know about electricity, Benny?” Dad asked. “Electricity gives us power. It flows through w_____. It’ s like water, in a way,” said Benny. “You’ re right! Electricity comes into our flat through thin wires. These are c_____to cables under the street,” Dad added. “What are the cable connected to?” asked Benny. “They’ re connected to power station,” answered Dad. A moment later, Daisy came back. “May I have my packet of electricity ?” Benny asked. “Here you are!” said Daisy. “But ... these are b_____!” said Benny. “Daisy’ s right,” said Dad. “The chemicals inside battery produce electricity.” Mum said, “Who looks f_____ now, Benny?” 【练习2·根据首字母提示填空】 He had a c__________ （谈话）with his doctor last week about how to keep fit. The teacher r__________（回答） to her student’ s question by email yesterday. Don’ t give him any stupid excuses. He’ s not f__________（愚蠢的）. The little girl was afraid of the dog. For a m__________（瞬间；片刻）, she didn’ t move. Mrs Smith is unhappy with her son because he never t__________ （使整洁）up his bedroom. 【练习3·选词填空】 air conditioner connect in a way touch washing wires Electricity and you You can not see or__________ electricity, but it is all around you. The lights in our rooms need electricity. Our__________ use electricity to clean our clothes, and our__________ use electricity to make our rooms comfortable. Phones and computer__________ our home and office to the outside world. These need electricity to work. They send information through__________ to other phones and computers, and this also uses electricity. __________, it is difficult for us to live without electricity. Electricity helps us live simple, fast and interesting lives. - 6 -

【练习4·阅读理解】 A species is the name for a group of animals that are alike, such as lions and tigers. If a species is endangered it means there are very few of those animals left in the world. If all the animals in a species die, the species becomes extinct. Those animals are gone forever. Many species are protected. A protected species means governments have made laws against killing the animals. The koala is close to being an endangered species. Interestingly, the koala is partly to blame for its decline. Koalas are too stubborn for their own good! When you were younger, were you a picky eater? Did your parents have to force you to eat things that were good for you? Hopefully you listened to what they taught you and ate your dinner. Koalas are picky eaters. They live in tall eucalyptus trees. Many of these trees are also called gum trees. Koalas eat the leaves of those trees. Since there are over 600 different types of eucalyptus trees, the koala should have no trouble fi nding food. But koalas are picky! They only want certain eucalyptus tree leaves to eat. Out of the 600 varieties of trees, koalas will only eat the leaves of about 120 kinds of eucalyptus tree. Some are even pickier than that. The koalas of a specifi c area will only eat about four or fi ve kinds of eucalyptus leaves. They would rather starve than eat the other kinds. Now that’s stubborn! The biggest problem for koalas now is that the brush land in Australia is being cut down. Towns and cities are pushing farther into the brush. Since many koalas live there, they are losing their tree homes and the trees leaves that feed them. Answer the following questions based on the reading passage. 1) What does it mean when an animal is extinct? _______________________________________________________________________________ 2) Imagine if you were like a koala and ate only one kind of food. What kind of food would it be? ______________________________________________________________________________________________________________________________________________________________ - 7 -

3) What is another name for many gum trees? ______________________________________________________________________________________________________________________________________________________________ 4) Why do you think the koala is so picky? ______________________________________________________________________________________________________________________________________________________________ 作1.复习Chapter2的单词与词组 ； 业布2.复习Chapter2动词短语的固定搭配； 置

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