1、Unit 3 Language in use,1.In order to become a “green school”,a school must include education about the environment as part of the timetable.(教材P32)为了成为“绿色学校”学校必须将环境教育作为课程表的一部分。 解读 in order to意为“为了”。后跟动词原形,引导目的状语,置于句首或句中。 In order to get up on time he bought an alarm. 为了按时起床,他买了一个闹钟。 拓展in order to 作目
2、的状语时,很多时候可以直接用动词不定式来表达。 To/In order to look after his parents,he moved to the countryside. 为了照顾他的父母,他搬到了乡下。,2.Ecotourism is also known as “responsible tourism”.(教材P33)生态旅游也被称为“负责任的旅游”。 解读 be known as意为“被称为,以著称”,相当于be famous as。 Jinan is known as“the City of Springs”. 济南被称为“泉城”。,易混辨析,3.It means you v
3、isit places without damaging the environment.(教材P33)这意味着你游览时不能破坏环境。 解读 without介词,意为“没有”,后跟名词、代词或动词-ing形式,其反义词是with。 Fish cant live without water. 没有水鱼就不能生存。 Jack left without saying a word. 杰克没说一句话就离开了。 拓展在一些情况下,without相当于 “if.not.” People cant live if there is not water or air. =People cant live wi
4、thout water or air. 没有水和空气人们不能生存。,情态动词 1.语法特征 (1)情态动词不能单独作谓语,必须和动词原形一起构成谓语。 (2)情态动词没有人称和数的变化(have to除外)。 (3)情态动词后跟动词原形。 2.情态动词用法辨析 (1)can和be able to,Jenny can play the piano.She has been able to play it since she was five. 珍妮会弹钢琴,从五岁起她就已经开始会弹钢琴了。 Mr.Liu has gone to Beijing,so the man cant be him. 刘老
5、师去北京了,因此那个人不可能是他。,(2)may和might,You may/might meet her at the party today. 你今天或许会在聚会上遇到她。 The story may be true. 那个故事可能是真的。 I might go to a concert tonight. 今晚我或许去听音乐会。,(3)must和have to,It rained heavily and we had to stay at home. 雨下得很大,我们不得不待在家。 To achieve the great China Dream,everyone must work ha
6、rd. 要实现伟大的中国梦,人人必须努力工作。 You mustnt play football in the street. 你一定不要在街上踢足球。 Must I hand in my homework today? 我今天必须要交上作业吗? No,you dont have to.You can hand it in tomorrow. 不,你不必,你可以明天交。,(4)need的用法,The man needs lots of money to afford his house. 这个人需要大量的钱支付房款。 Must we finish cleaning the house toda
7、y? 今天我们必须打扫完这栋房子吗? No,you neednt.不,不必。,(5)should的用法 should意为“应该”,后跟动词原形;shouldnt意为“不应该”。 To keep healthy,we should take more exercise and shouldnt watch TV too much. 为了保持健康,我们应该多参加体育锻炼,不应该过多地看电视。 拓展should do sth.表示“应该做某事”,经常用于提建议。 You should do some running every day. 每天你应该跑跑步。,1 Match the signs wit
8、h the rules and warnings. Answers:(1)c (2)b (3)d (4)e (5)f (6)a 2 Read the list of rules and write sentences using must,mustnt,should or shouldnt. Answers: (1)You must check in at the main gate when you come to the centre. (2)You must climb with someone. (3)You should wear a hard hat at all times. (
9、4)You should wear the correct climbing shoes. (5)You should wear comfortable clothes. (6)You mustnt climb without a rope. (7)You shouldnt eat or drink anywhere except in the restaurant. (8)You shouldnt listen to personal music players while climbing. (9)You shouldnt talk on a mobile phone while clim
10、bing.,4 Complete the passage with the correct form of the words in the box. Answers:(1)worried (2)Although (3)stream (4)tourists (5)keeping 5 Complete the sentences with the words in the box. Answers:(1)whenever (2)stones (3)smooth (4)tent (5)gun (6)sudden (7)sticks Revision module A 3 Choose the co
11、rrect answer. Answers:(1)the;/ (2)Neither (3)some;other (4)better (5)in;on (6)neednt (7)ready for (8)mustnt,4 Complete the passage with the correct form of the words in the box. Answers:(1)safest (2)seriously (3)properly (4)seldom (5)more dangerous 5 Complete the passage with the sentences in the bo
12、x.There is one extra sentence. Answers:(1)e) (2)a) (3)b) (4)d) 6 Read the passage and choose the correct answer. Answers:(1)Eating habits in the UK and China (2)hot lunches (3)the evening meal is the most important one 7 Read the passage and match the headings with the paragraphs. Answers:a)(3) b)(1) c)(4) d)(2),
