Unit 4 课时2 阅读-【宝典训练】2023-2024学年七年级下册英语高效课堂课件（沪教牛津版）

Unit 4　Save the trees 课时2　阅读 目 录 01 课时精讲 02 课时过关 03 拓展训练 01 课时精讲 课文重点句子的讲解 1．They keep the air cool and clean. 它们保持空气凉爽和清洁。 keep sth.＋adj. 使某物保持怎样的状态　如： Our teacher tried many ways to keep us active. 我们的老师试用多种方法使我们活跃。 第 ‹#› 页 课时2　阅读 返回目录 2．They take in harmful gases from the air. 它们从空气中吸收有害气体。 (1)take in 意为“吸收”。 【搭配】take out拿出来；take away拿走；take sth. with sb. 随身携带某物 第 ‹#› 页 课时2　阅读 返回目录 【拓展】take/bring/carry/fetch 的区别和用法： take是“从此处带走、拿走”；bring是“从别处带来”；carry仅仅是指“拿起、扛起”，不具有方向性；fetch是指“去拿来，带有来回的过程”。 【例题】 It is colder and colder. Let's ______ some wood to make a fire. 天变得越来越冷了，让我们去捡些木头来生火吧。 fetch 第 ‹#› 页 课时2　阅读 返回目录 (2)harmful 意为“有害的”，其名词形式是“harm”． 【搭配】be harmful to ＝ be bad for 对……有害 【例题】Smoking is _________ (harm) to your health. 吸烟对你的健康有害。 harmful 第 ‹#› 页 课时2　阅读 返回目录 3．They're major fighters against air pollution. 它们是空气污染的主要对抗者(体)。 (1)major意为“主要的”。 (2)fighters against ……的对抗者 　fight against对抗某人、某物。 【拓展】fight for为某人、某物斗争；fight about因为某物而战； fight with与某人斗争； fight sth.与……作斗争。 第 ‹#› 页 课时2　阅读 返回目录 【例题】 ①We should try our best to __________________ (对抗) noise pollution. ②People used to _________ (为……斗争) freedom and equal rights. fight against/fight fight for 第 ‹#› 页 课时2　阅读 返回目录 4．I know trees also make our lives more convenient. 我知道树木也使我们的生活更方便。 make sb.＋adj. 意为“使变得，使成为”。 【例题】 The good news made my mum _______. 这个好消息使我的妈妈感到很开心。 happy 第 ‹#› 页 课时2　阅读 返回目录 5．A lot of the furniture is made of wood. 很多家具是用木头做的。 furniture 意为“家具”，是不可数名词，其后用动词的单数形式。 【拓展】表示一件或多件家具时用“piece(s)/item(s)of furniture”。 【例题】 (1)The furniture____easy to move. (2)Some new________of furniture have been added. is pieces 第 ‹#› 页 课时2　阅读 返回目录 6．We should stop doing this if we don't want a world without trees. 如果我们不想要一个没有树木的世界，我们应该停止这样做。 stop doing sth. 意为“停止做某事”。 stop to do sth. 意为“停下来去做某事”。 【例题】(1)You look tired. Why not stop _________ (have) a rest？ (2)I should stop _______ (have) a rest now. I have lots of homework to do. to have having 第 ‹#› 页 课时2　阅读 返回目录 02 课时过关 一、翻译下列重点短语 1．吸收 __________ 2．在很多方面 _______________ 3．砍倒 __________ 4．在我们的日常生活中 ___________________ 5．由……制成 ____________ 6．环顾四周 _____________ 7．来自 ___________ take in in many ways cut down in our daily lives be made of look around come from 第 ‹#› 页 课时2　阅读 返回目录 8．空气/噪音污染 ______________________ 9．大量的；数以百万计的 _____________ 10．对……有用，有好处 _____________ 11．了解 ____________ 12．因……而出名 ________________ 13．生物 _______________ 14．享受做某事的乐趣 _________________ 15．事实上；确切地说 _________ air/noise pollution millions of be good for know about be famous for living things enjoydoing sth. in fact 第 ‹#› 页 课时2　阅读 返回目录 二、回顾课文，完成短文 Rebecca wants to know more about trees and how they help us. Dr Jones is telling her something about trees. 第 ‹#› 页 课时2　阅读 返回目录 Trees help us 1．____ many ways. They keep the air cool and clean. They take in 2．________(harm) gases from the air and produce oxygen for us 3．_________ (breathe)．They are major 4．______(fight) against air 5．___________ (pollute)．Besides, trees can also make our lives even 6．________________(convenient)．Many of the things in our daily lives come from trees. For example, paper and pencils. 7．__________ (actual), we get a lot more from trees. We get fruit and oil from them. Tea also comes from the leaves of trees. Look around this room. A lot of the furniture is 8．______(make)of wood. Trees are really important in our daily lives. So we can't imagine 9．______ the world would be like if there were no trees. in harmful to breathe fighters pollution more convenient Actually made what 第 ‹#› 页 课时2　阅读 返回目录 However, we cut down millions of trees every year. We must stop to protect them 10．____ we don't want a world without trees. if 第 ‹#› 页 课时2　阅读 返回目录 三、阅读理解 Trees in cities “live fast but die young” compared to forests in the countryside，warns a new study. Researchers found that trees in cities die younger than ones in the countryside because of the higher levels of CO2.City-living trees suffer (遭受) a loss of carbon storage (碳储量)．That means trees produce less energy from the air. 第 ‹#› 页 课时2　阅读 返回目录 Now researchers say more must be done to deal with the situation.Ian Smith，a PhD.student of Boston University in the United States，said, “Cities are in the important position in fighting against rising temperatures and increasing CO2.”．“We find that tree planting alone may not be enough to keep and increase city canopy cover (树冠覆盖率)．Because of the age and size of the present canopy，efforts to improve and protect tree health are badly needed for increasing city tree cover and canopy cover.” 第 ‹#› 页 课时2　阅读 返回目录 The research team used a model to watch changes among street trees for several planting and management methods.Researchers also used the model to watch tree growth，death and planting rates(率)both among trees in Boston city and forests in the countryside in Massachusetts. 第 ‹#› 页 课时2　阅读 返回目录 It was discovered that rates of carbon cycling and growth rates among city trees were nearly four times faster than those in the countryside.However，loss of carbon storage and death rates are also higher，especially death rates are more than double higher than those in countryside forests. 第 ‹#› 页 课时2　阅读 返回目录 The study，published in PLOS ONE，has reminded scientists to encourage communities to do more to plant and protect trees.It is important to increase city canopy cover and carbon storage. Researchers say planting and protecting will be needed to make sure cities can develop healthily，but more needs to be done to have a better understanding of city trees—which may be different from countryside forests. 第 ‹#› 页 课时2　阅读 返回目录 (　　)1．According to the passage，which of the following is TRUE？ A．The more carbon storage loses，the more energy the trees produce from the air. B．The higher the levels of CO2 are，the harder it will be for the plants to survive. C．If we plant enough trees，we are sure to increase city canopy cover. D．Cities do better in fighting against rising temperatures and increasing CO2. B 第 ‹#› 页 课时2　阅读 返回目录 (　　)2．Paragraph 4 mainly tells us ________________. A．the results of the study B．the discoveries from the researchers C．the methods of the study D．the suggestions from the researchers C 第 ‹#› 页 课时2　阅读 返回目录 (　　)3．What does “those” in Paragraph 5 refer to？ A．Death rates. B．Rates of carbon cycling. C．Growth rates. D．Loss of carbon storage. A 第 ‹#› 页 课时2　阅读 返回目录 (　　)4．What's the writer's main purpose of writing the passage？ A．To teach us how to improve and protect tree health. B．To warn us that trees in cities live fast but die young. C．To let us have a better understanding of city trees. D．To tell us to take action to increase city canopy cover. C 第 ‹#› 页 课时2　阅读 返回目录 03 拓展训练 小组讨论，至少列出3条树木的用处，以及谈谈如何保护树木。 ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________________ Trees have many benefits for people. First, they benefit our health. They make oxygen for us to breathe. Second, they take in harmful gases from the air. We can't live without trees. Third, trees can beautify our environment. As trees are so important, we must do our best to protect them. We must enforce the tree protection laws. We must plant as many trees as possible. Only in this way can we live happily in the beautiful world. 第 ‹#› 页 课时2　阅读 返回目录 本节内容到此结束！ logo $$