选修7 Unit 4《Sharing》第三导学案.doc

Periods 45-Language points Teaching Aims: 教学目标 1. To learn some new words and phrases. 2. To master the main idea of each paragraph. 3. To learn some complicated sentence patterns. Teaching contents: 重点词汇 Teaching Important Point: 教学重点 The usage of some useful words and expressions. Teaching Difficult Point: 教学难点 How to grasp and remember the detailed information of the reading material. Teaching Procedures: 教学步骤 1. work as a volunteer 当志愿者 work as 从事某种职业 He used to work as a bus driver. 2．Well，it’s a bush school—the classrooms are made from bamboo and the roofs from grass.它是一所丛林学校——教室是用竹子搭起来的，屋顶是用茅草盖的。 the roofs from grass是the roofs are made from grass的省略。在英语中，当and连接两个并列句时，如后一分句的谓语动词与前一分句的谓语动词相同，常把后一分句的谓语动词省去。 One side of the board was painted white and the other yellow. 木板的一面被漆成了白色，另一面被漆成了黄色。 We raced to the east and they to the west. 我们向东驶去，他们则向西驶去。 He majors in chemistry and I in physics. 他主修化学，我则主修物理。 3.come across 　偶然遇到或发现，碰见 The boys who had never come across anything like this before started jumping out of the windows. 男孩们从未见过这种情况，(吓得)都往窗外跳去。 [归纳拓展] ①She came across some old photographs in a drawer. 她在抽屉里偶然发现了一些旧照片。 ②I came across an old friend I hadn’t seen for years. 我碰巧遇见了多年未见的老朋友。 ③This situation should never have come about. 这种情况本来不应该发生。 ④They met with an accident on their way home. 他们在回家的路上出了车祸。 [例句探源] If we can______our present difficulties，then everything should be all right. A．come across　　　　　　B．get over C．come over D．get off 解析：选B。本题考查动词短语。come across偶然碰到/遇见；get over克服(困难)；come over过来，从远方来，顺便来访；get off意为“下车/来，动身，开始”。本题为“克服我们目前的困难”之意，故选B。 [即境活用] His car ________ the terrible traffic jam，so he had to call off his appointment with his doctor. A．came across B．came along C．came between D．came over 解析：选A。句意：由于他的车遇到了交通堵塞，所以不得不取消了与医生的约会。come across偶然遇到。come along 随同，一起；come between介入……之间，妨碍；come over过来，从远方来。 4.Sometimes I wonder how relevant chemistry is to these students, most of whom will be going back to their villages after Year 8 anyway