牛津译林版八年级英语上册《Birdwatching》PPT课件(第3课时)，共17页。B What do birdwatchers do?B1) Match the words on the left with the meanings on the right.1 provide (line 3) ______ a stop something from happening2 perfect (line 3) ______ b know3 lead to (line 10) ______ c a person who is travelling or visiting a place4 prevent (line 13) ______ d give something to someone or something else5 tourist (line 17) ______ e the best6 understand (line 19) ______ f have something as a result知识点in order to “以便，为的是”in order to后跟动词原形，引导目的状语，可以放在句首或句中。eg：In order to catch the early bus, he got up early this morning.＝ He got up early this morning in order to catch the early bus.为了赶上早班车，他今天早晨起得很早。in order to do sth.的否定形式为in order not to do sth.，意为“为了不做某事”。eg：In order not to miss the chance, he gave up his holiday.为了不错过这个机会，他放弃了自己的假期。less and less 越来越少less and less 后跟不可数名词， 如：less and less moneyfewer and fewer 越来越少，后面跟可数名词， 如：fewer and fewer booksmore and more越来越多，既可以跟可数名词，也可以跟不可数名词， 如：more and more people/ timeprevent /prɪ'vent/ vt.防止，预防eg: Nothing can prevent her going to school.什么也不能阻止她上学。prevent sb. from doing sth.意为“阻止某人做某事”。prevent还可用stop或keep替换。eg: The heavy rain prevented (stopped/kept) us from going forward. 大雨阻止了我们前行。课堂练习一、用方框中的单词或短语的适当形式填空1．His hard work ____________ his success.2．The workers are very busy _______________．3．These years, _______________ people understand that it's necessary to save wild animals.4．This is a ________ of road accidents.5．Some students are playing in the playground, ________ some students are doing their homework in the classroom.二、根据汉语完成句子6. 熬夜会导致健康问题。Staying up late will ________ ________health problems.7. 你最好尽快阻止你儿子玩火。You'd better ____________your son_______ _______ ________fire as soon as possible.8．我们的报告将会使更多的人理解保护鸟类的重要性。Our report will make more people __________ ______ ____________ _______ __________ ________.9. 这个森林为野生动物提供了完美的庇护所。This forest _______ _______ _______ ________wildlife.10．为了找到足够的食物，很多鸟儿飞到这里作短暂停留。________ ________ ________find enough food, many birds fly here _______ _______ _______ _______．... ... ...关键词：《Birdwatching》PPT课件免费下载，.PPT格式 本作品中主体文字及图片可替换修改，文字修改可直接点击文本框进行编辑，图片更改可选中图片后单击鼠标右键选择更换图片，也可根据自身需求增加和删除作品中的内容，源文件无水印。如认为该内容涉嫌侵权，可通过邮件提出书面通知，我们将及时处理。