2019新人教版高一英语Welcome Unit学案【知识框架】Welcome Unit 【核心词汇】1.exchange /ɪksˈtʃeɪndʒ/n. [C;U] 交换; 交流; 交易]vt. 交换; 交流；交易; 兑换I’m an exchange student from the UK.(教材P2)我是来自英国的交换生。
[合作探究] 体会exchange的用法和意义①It’s really easy to exchange traveller’s cheques at banks or hotels.在银行或宾馆兑换旅行支票非常容易。
②I’ll go to the bank to exchange some pounds for dollars.我要去银行把一些英镑换成美元。
③I will take full advantage of the chance to exchange views with them.(我将充分利用这次机会与他们交换观点。
④I gave Mary an apple in exchange for my favorite banana.我送给玛丽一个苹果交换我最喜欢吃的香蕉。
[自主发现]⑤exchange...for...以……交换/兑换……⑥exchange sth with sb 与某人交换某物⑦in exchange for 作为对……的交换或替换[词块积累]（exchange cheques兑换支票exchange students 交换生cultural exchange 文化交流2. designer /dɪˈzaɪnə(r)/ n.设计师;设计者3. design / dɪˈzaɪn / n.设计;方案；图案vt.设计；筹划⑦The Hope Project is designed to help those children who drop out of school because of poverty.希望工程旨在帮助那些因为贫困而辍学的孩子们。
⑦This room was designed for children as a children’s playroom.】这个房间是为孩子们设计作为游乐室的。
⑦We don’t know whether they did it by accident or by design.我们不知道他们这样做是偶然的还是故意的。
[自主发现]⑦be designed for/to do sth旨在/计划做某事；打算被用来做……⑦design sth for... 打算让……用作某种目的；为……而设计某物⑦by design/chance 故意地；蓄意地[思考]你知道by design的同义短语和反义短语吗？~同义短语：on purpose反义短语：by accident4. anxious / ˈæŋkʃəs / adj.焦虑的;不安的；渴望的anxiety n.忧虑；担心；渴望anxiously adv.焦虑地[合作探究]体会anxious及其相关词的用法和意义⑦She is anxious to go to college now，but anxious about/for not passing the College Entrance Examination.她现在渴望上大学，但又担心不能通过高考。
⑦I spent the next several hours filled with anxiety.我在焦虑不安中度过了余下的几个小时。
$⑦Everybody is waiting anxiously for the doctor.大家都在焦急地等着医生。
⑦We waited with anxiety for the news of her safe arrival.我们焦急地等待她平安到达的消息。
[自主发现]⑦be anxious for/about为……担心/担忧⑦be anxious to do sth 渴望做某事⑦with anxiety 焦虑地}5.annoyed /əˈnɔɪd/ adj.（人感到）恼怒的；生气的I get annoyed (annoy) when someone talks to me while I’m reading.6.annoy /əˈnɔɪ/ vt.使恼怒；打扰My husband’s talking with full food in his mouth often annoys me.Although I sometimes am annoyed with him about his annoying habit，he can’t get rid of it.7. frightened /ˈfraɪtnd/ adj.（人）受惊吓的；（人感到）害怕的frightening adj.令人恐惧的fright n.惊吓，恐怖frighten vt.使害怕，使惊吓[合作探究]体会frightened及其相关词的用法和意义⑦The little girl is frightened of dogs. 这个小女孩害怕狗。
⑦She was very frightened to look down from the top floor of the building..她很害怕从那栋建筑物的顶楼往下看。
⑦The little girl was frightened at the sight of the frightening snake and shook with fright.这个小女孩一看到这条令人恐怖的蛇就感到很恐惧，吓得浑身发抖。
⑦News of the robberies frightened many people into fitting new locks to their doors.发生抢劫案的消息把许多人吓得装上了新门锁。
[自主发现]⑦be frightened of害怕⑦be frightened to do... 害怕做……⑦with fright 害怕地⑦frighten sb into doing sth 吓得某人做某事、[巩固内化](1)单句语法填空⑦Travelling in an airplane can be a __________(frighten) experience for some people.⑦The __________ fiction made him __________ to death.(frighten)⑦The man frightened the old lady into __________(sign) the paper at last.(2)补全句子⑦He was frightened to death when he saw the frightening scene.当他看到这令人惊恐的一幕时他吓得要死。
'8. impression/ɪmˈpreʃn/ n.印象；感想make an impression留下好印象9.impress/ɪmˈpres/vt.使钦佩；给…留下深刻的好印象vi.留下印象；引人注目⑦The new teacher made/left a good impression on the students by her rich knowledge and humorous talk.那位新老师以丰富的知识和幽默的语言给同学们留下了很好的印象。
[短语记牢]记牢下列短语leave/make an impression on...给……留下印象be impressed by/with... 被……打动&impress sth on sb/impress sb with sth 某事给某人留下深刻印象⑦Everyone agreed that they were greatly impressed by Morissette’s brilliant music and singing.大家都认为莫里塞特杰出的音乐和演唱给他们留下了深刻的印象。
⑦Our teacher impressed us with the importance of learning English well.老师要我们牢牢记住学好英语的重要性。
10.what if如果…会怎么样呢？【句式解读】句中what if...表示“要是……会怎么样呢？”后面跟一个句子，相当于What will/would happen if...?【用法总结】￥(1)What about.../How about...？……怎么样？(表建议或征求对方意见)What about/How about going to the movies with me tonight?今晚和我去看场电影好不好？(2)Why not do...? 为什么不……？Why not stop them (from) polluting the river?为什么不阻止他们污染这条河呢？(3)How come...？……怎么发生的？How come you enjoy collecting stamps?\你怎么会喜欢集邮呢？[巩固内化](1)单句语法填空⑦What if we moved the sofa over there?⑦What about having(have) a game of chess?(2)补全句子⑦How come they left you alone here?他们怎么会把你一个人留在这里呢？~⑦Why not try doing it in some other way?为什么不用其他办法试着做它呢？11. concentrate / ˈkɒnsntreɪt / vt.&vi.集中（注意力）；专心于;聚集会神⑦I will leave so that/in order that you can concentrate on your work.我这就走，好让你能专心工作。
[短语记牢]记牢下列短语concentrate on (doing) sth专心(做)某事concentrate one’s mind/one’s attention on 集中注意力于；致力于；专心于￥focus on 集中精力于fix/focus one’s mind/attention on... 集中注意力于……⑦We should concentrate our attention on efficiency to improve our work.我们应该把注意力集中在效率上来改善我们的工作。