新概念二lesson4
新概念第二册lesson-4-课文详解及练习答案
令人兴奋的exciting adj. 令人兴奋的；excited adj. 兴奋的-ed: 自己感到 / -ing:令人感到The news exciting.exciting boy 令人兴奋的男孩I am excited.excite v. 激动（这类动词的宾语一定是人，让后面的人感到……）The news excited me.interesting adj. 令人感到有趣的；interested adj. 感到有意思的interesting manThe man is interesting.interest v. 对……感兴趣The book interests me. 那本书让我感到很有趣★receive v. 接受, 收到① vt. 接到，收到，得到When did you receive that letter?② vt. 招待，接待You need a large room if you are going to receive so many guests.receive 是“收到”，指的是一个被动的动作，主观上接受与否不清楚。
receive/have a letter from sb.accept 同意接收This morning I received a bunch of flowers from a boy,but I didn't accept it. take则是主动的“拿”、“取”I received a beautiful pen from my uncle. My brother took it from me yesterday. take 也可以作收到take the exam 接受考试； take advice 接受建议★firm n. 商行, 公司company n. 公司★different adj. 不同的① adj. 不同的，相异的（经常与 from连用）We are planning something different this year.我们今年有不同的打算。
新概念英语_第二册_Lesson4
【辨】 exciting, thrilling ['θrɪlɪŋ] exciting 通常来形容让人很激动的人或事； thrilling 用来形容让人激动或害怕的发抖、令 人难以控制情绪的事
-ed自己感到 interested, bored, -ing令人感到interesting,boring, I am interested in this book. This is an interesting book.
in the centre (of sp),
adj. central中央的，中心的
■abroad adv. 在国外，到处，海外，广泛
get abroad 出去, 出门; (谣言)传出去, 传开 go abroad 去国外 live abroad 到国外定居 study abroad 到国外学习 She is hungry for news of her husband working abroad. 她渴望得到国外工作的丈夫的消息。 他在国外生活了许多年。 He lived abroad for many years. 你出国度假吗？ Are you going abroad for your holidays? 他有生以来从未到过国外。 He’s never been abroad in his life.
excited 感到兴奋的
-ed自己感到 interested, bored, relaxed -ing令人感到interesting,boring,relaxing
Language points
4. He has just bought an Australian car and has gone to Alice springs. He has gone to the south.(还在) He has been to the south.(去过) 5. He is finding this trip very exciting. find+n+adj.觉得…怎么样 e.g.I find the film boring. Do you find the book very interesting?
新概念英语第二册+Lesson+4+An+exciting+trip+讲义
新概念英语第二册Lesson 4 An exciting tripI have just received a letter from my brother, Tim. He is in Australia. He has been there for six months. Tim is an engineer. He is working for a big firm and he has already visited a great number of different places in Australia. He has just bought an Australian car and has gone to Alice Springs, a small town in the centre of Australia. He will soon visit Darwin From there, he will fly to Perth. My brother has never been abroad before, so he is finding2 this trip very exciting.参考译文我刚刚收到弟弟蒂姆的来信，他正在澳大利亚。
他在那儿已经住了6个月了。
蒂姆是个工程师，正在为一家大公司工作，并且已经去过澳大利亚的不少地方了。
他刚买了一辆澳大利亚小汽车，现在去了澳大利亚中部的小镇艾利斯斯普林斯。
他不久还将到达尔文去，从那里，他再飞往珀斯。
我弟弟以前从未出过国，因此，他觉得这次旅行非常激动人心。
单词1.exciting adj. 令人兴奋的excited adj. （感到）兴奋的excite v. 令……兴奋（人作主语）It must be an exciting trip. 那一定是一次令人兴奋的旅行。
类似的词：surprising 令人惊奇的surprised 感到惊奇的interesting 令人感兴趣的interested 感到感兴趣的shocking 令人震惊的shocked 感到震惊的statisfying 令人满意的statisfied 感到满意的disappointing 令人失望的disappointed 感到失望的moving 令人感动的moved 感到感动的touching 令人感动的touched 感到感动的embarrassing 令人尴尬的embarrassed 感到尴尬的2．receive vt.（1）接到，收到，得到：When did you receive that letter?你什么时候收到那封信的？Susan received a gift/card this morning.今天上午苏珊收到了一份礼物／一张卡。
新概念2 Lesson4 An exciting trip
He has just bought an Australian car and has
同位语 from 既可以加时间 又可以加地点
Alice springs, a small town in the centre of go the Perth by air
He will soon visit Darwin. From there, he wi My brother has never been abroad before, so
★abroad ★firm
adv. 在国外 副词，直接和动词连用 go abroad/live abroad/study abroad/be abroad n.公司 company 更口语化 corporation 公司，法人，团体 group 集团公司 firm adj. 牢固的，坚实的,坚决的 The leg of that chair is not very firm. as firm as rock. 坚如磐石
believe/see/hear/know/understand/think/f eel/show/sound/like/care/love/desire等
现在完成时
构成： have/has+动词的过去分词
注意：动词的不规则变化，过去分词 go-went-gone drive-drove-driven sleep-slept-slept do-did-done
★different
adj. 不同的 反义词-
same (Br) A is different from B. (Br) A is different to B. Everyone is different from others. (Am) A is different from B. (Am) A is different than B. You look different than before.
新概念2 lesson4
• 6 friendly ['frend/li] a.友好的 • 7 waiter ['wei/tə] n. （男）服务员，招待员 • 8 lend [lend] v. （lent，lent）借给
• 9 decision [di'/si/ʒən] n.决定
• 10 whole [həul] a.整个的 • 11 single ['siŋ/gəl] a.唯一的，单一的
Make up your stories.
•exciting [ikˈsaitiŋ] adj. 令人兴奋的
•receive [riˈsi:v] v. 接受，收到
•firm [fə:m] n. 商行，公司
•different [ˈdifərənt] adj. 不同的
•centre [ˈsentə] n. 中心
-ing令人感到interesting,boring,relaxing
I have just received _________ a letter_____my from brother, Tim. He is in Australia. He has _____ been there for six months. Tim is an engineer. He is ___________a ____ working for big firm and he has already ______a visited great number of different _______ places in Australia. He has just gone ______an bought Australian car and has _____to Alice Springs, a small town in the centre ______ of Australia. He will soon visit Darwin. From there, he will fly to Perth. My brother been ______ abroad before, so he is has never _____ exciting finding this trip very ________.
新概念英语第二册语法精讲-Lesson4
小T 新概念英语2------------LESSON 4 An exciting trip重点词组：receive a letter 收到一封信work for 在…工作/上班a great number of 许多fly to 飞往be abroad 在国外in the centre of 在…中部语法点：1. at/in +地点a) at用于建筑物、车站等小地点前 e.g.: at home 在家at school 在学校at the stop 在车站b) in用于国家、城市等大地点前 e.g.: in China 在中国in Dalian 在大连注意：当同一场所被看为一个地点，强调在某个地点不强调范围空间时用at，若强调在建筑内部时用ine.g.：Let's meet at Wanda Cinema. 我们在万达电影院见面吧。
There are 1,000 seats in Wanda Cinema. 万达电影院里有一千个座位。
2. work & job都是指工作，但job是可数名词，work是不可数名词。
通常情况下job强调工作种类，而work强调工作量在课文里work for指在……上班/工作，也可以说e.g.: She works at our department. 她在我们部门工作。
3. a number of意为大量的，很多= lots of，只能接可数名词的复数形式。
number前可以加great，large，good，small等形容词，表示量的多少e.g.:A large/great number of students in our school are foreigners.我们学校的学生中有许多外国人。
There are a small number of mistakes in my homework. 我的作业里有很少几个错误。
4. find意为发现，发觉的时候宾语往往带补语（又称宾语补足语，一般为形容词），用来说明宾语的状况、性质等e.g.: I find the film very interesting. 我觉得这电影很有趣。
新概念英语第二册 lesson 4 笔记和答案
新概念英语第二册 lesson 4 An exciting trip Lesson 4 An exciting trip 激动人心的旅行课文内容：I have just received a letter from my brother, Tim. He is in Australia. He has been there for six months. Tim is an engineer. He is working for a big firm and he has already visited a great number of different places in Australia. He has just bought an Australian car and has gone to Alice Springs, a small town in the centre of Australia. He will soon visit Darwin From there, he will fly to Perth. My brother has never been abroad before, so he is finding this trip very exciting.Notes on the text 课文注释1 He has been there for six months. 他在那儿已经住了6个月了。
关于动词的现在完成时，可以参看第1册第83至87课。
2 a great number of…, 许多…，用于修饰复数可数名词。
3 in the centre of…, 在……中部。
参考译文我刚刚收到弟弟蒂姆的来信，他正在澳大利亚。
他在那儿已经住了6个月了。
蒂姆是个工程师，正在为一家大公司工作，并且已经去过澳大利亚的不少地方了。
他刚买了一辆澳大利亚小汽车，现在去了澳大利亚中部的小镇艾利斯斯普林斯。
新概念2册 lesson4 知识点全讲解
精心整理Lesson4Anexcitingtrip词汇学习1.区分：（1）excitingadj.令人兴奋的；Thenewsisexciting.这新闻让人兴奋excitingboy令人兴奋的男孩.（2）excitedadj.兴奋的-ed:自己感到/-ing:令人感到Iamexcited.我很兴奋（3）excitev.激动（这类动词的宾语一定是人，让后面的人感到……）Thenewsexcitedme.这个消息使我兴奋。
类似用法：interestingadj.令人感到有趣的；interestedadj.感到有意思的interestingman,Themanisinteresting.interestv.对……感兴趣Thebookinterestsme.那本书让我感到很有趣2.receivev.接受,收到vt.接到，收到，得到Whendidyoureceivethatletter?你什么时候收到那封信的？receive是“收到”，指的是一个被动的动作，主观上接受与否不清楚。
receive/havealetterfromsb.accept同意接收ThismorningIreceivedabunchofflowersfromaboy,butIdidn'tacceptit.今早我收到一束一个男生送的花，但我没有接受区分：take则是主动的“拿”、“取”Ireceivedabeautifulpenfrommyuncle.我送叔叔那拿了一支漂亮的笔。
Mybrothertookitfrommeyesterday.我哥哥昨天从我这拿的。
take也可以作收到taketheexam接受考试；takeadvice接受建议3.firm（1）n.商行,公司lawfirm法律公司（2）adj结实的，稳固的Thecarisveryfirm.区分firm中小型公司；companyn.正规公司；business商行4.agreatnumberof+可数名词复数=agreatmany+可数名词复数agreatnumberofcars,agreatmanypeople区分：agreatamountof+不可数名词agreatamountofmoney5.differentadj.不同的①adj.不同的，相异的（经常与from连用）Weareplanningsomethingdifferentthisyear.我们今年有不同的打算。
新概念第二册Lesson_4
Christina Zhang
I have just received a letter from my brother Tim.
I have just done sth. 我刚做完某事(现在完成时） 我刚收到加州大学的入学通知书。 I’ve just received an admission letter from California State University. 我刚收到你的电子邮件。 I’ve just received your e-mail. 他刚找到一份餐厅的工作。 He has just found go abroad 与been abroad 的区别
Tim is an engineer. He is now working for a big firm.
Firm=company Company公司 Enterprise企业 Corporation组织，大公司 Manufacturer 厂家
He has visited a great number of different places in Australia.
My brother has never been abroad before, so he is finding his trip very exciting.
我弟弟从来没有出过国，他觉得他的旅行非常刺激。 我从来没有发过QQ信息给你。 I’ve never sent any QQ message to you. 他以前从来没有做过服务员。 He has never worked as a waiter before. 他们以前从来没有试过这样的。 They have never been like this before. Find sth.(sb.)+adj 觉得….（如何） I find him funny.我觉得他很有趣。 我觉得英语越来越有趣。 I’m finding English more and more interesting. 他觉得他的老板很难给他打工的。 He is finding his boss difficult to work for.
新概念英语第二册 Lesson 4
Lesson 4An exciting tripPhrase:1. receive…from 从…收到2. a great number of 许许多多3. work for a firm 为一家公司工作4. in the centre of 在…的中心Intensive Reading:1. a great/ large number/ many of许许多多，修饰可数名词复数，eg. There are a great number of students in the hall.2. a small town in the centre of Australia是宾语Alice Springs的同位语，用来补充说明宾语。
我们必须用逗号把同位语与其它成分隔开。
3.He is finding this trip very exciting. 此句中find经常用于“动词+宾语+宾补”的句型中。
宾补一般是形容词或分词。
eg. I find English very difficult.Key Structure:1.一般现在完成时：1). 用法：A. 描述发生在过去不确定的时间内的行为动作（正确的时间不重要或没有提供），但是动作的结果现在还很明显，汉语中常用“了”“过”来表示。
B. 用来询问对方是否干了某事，eg. Have you had lunch?C. 表示动作发生在过去并且一直延续到现在，甚至还有可能延续下去。
这时，常和“for+一段时间”或“since+过去时间点”连用，for表示动作或状态持续多长时间，而since则表示动作或状态是什么时候开始的。
eg. He has been there for six months. 他在那里待了六个月了。
He has been there since March. 从三月份起，他一直在这儿。
D. 表示相类似的动作在过去已经做过的次数。
注意：瞬间动作不能与表示一段时间的时间状语连用。
Lesson4Anexcitingtrip(教学设计)-2024-2025学年新概念英语第二册
（3）讨论课文中的关键句型，如：“We went to... We visited... We saw...”等，让学生们模仿并练习使用这些句型。
此外，课后作业的布置也让我意识到，学生们在写作方面的能力还有待提高。在今后的教学中，我将加强对学生写作技巧的指导，如如何构思文章、如何运用连接词等，帮助他们提高写作水平。
在拓展资源方面，我推荐了与旅行相关的阅读材料和视听资源，希望学生们能够在课后进行自主学习，拓宽视野。但从学生的反馈来看，他们对这些资源的利用程度并不高。因此，我考虑在下一节课中，专门安排一段时间让学生分享他们在课后拓展学习中的收获，以此激发他们的学习兴趣。
（2）布置作业：“For homework, please write a short passage about your own exciting trip using the past tense. You can use the vocabulary rned today.”
核心素养目标
学情分析
本节课面向的学生群体为四年级学生，他们在英语学习上已具备一定的词汇量和基本的语法知识，能够使用简单句型进行日常交流。在知识层面，学生对一般过去时态有初步了解，但对其运用尚需加强。能力上，学生的听说能力相对较强，但写作和阅读理解能力有待提高。此外，学生具有较高的学习热情和好奇心，对于旅行等贴近生活的话题表现出浓厚兴趣，有利于激发学习动机。然而，部分学生在课堂参与度和注意力集中方面存在差异，可能会影响课程学习效果。因此，在教学过程中，应关注个体差异，采用多样化的教学策略，确保每位学生都能在原有基础上得到提升，充分发挥课本内容在实际语境中的应用价值。
(完整版)新概念英语第二册lesson-4(含课文、练习)
Lesson 4 An exciting trip 激动人心的旅行I have just received a letter from my brother, Tim. He is in Australia. He has been there for six months. Tim is an engineer. He is working for a big firm and he has already visited a great number of different places in Australia. He has just bought an Australian car and has gone to Alice springs, a small town in the centre of Australia. He will soon visit Darwin. From there, he will fly to Perth. My brother has never been abroad before, so he is fending this trip very exciting.我刚刚收到弟弟的来信，提姆。
他在澳大利亚。
他有六个月了。
提姆是一个工程师。
他是一家大公司工作，他已经访问了许多不同的地方在澳大利亚。
他刚买了一辆汽车和澳大利亚已经向爱丽丝斯普林斯，一个小镇的中心，澳大利亚。
他将很快访问达尔文。
从那里，他再飞往珀斯。
我兄弟从来没有出过国，因此他觉得这次旅行非常激动。
Notes on the text 课文注释1 He has been there for six months. 他在那儿已经住了6个月了。
关于动词的现在完成时。
2 a great number of…, 许多…，用于修饰复数可数名词。
3 in the centre of…, 在……中部。
新概念英语第二册Lesson4课件(共25张PPT)
D.the same size as a village
Choose.
( C )11.He will soon visit Darwin. He will
visit Darwin _____.
A.quickly
B.for a short time
C.shortly
D.in a hurry
(C )12.He will fly to Perth. He will go
in the centre of Australia. He will soon ___v_is_i_t__(visit)7 Darwin. From there, he will __f_ly__t_o____(fly to)8 Perth. My brother has never been abroad before, so he is finding this trip very _in__t_e_r_e_s_t_i_n_g_
( B )4.-Have you ever _____ to Haikou? -Yes, I ____ there with my family
last August.(11海南) A.gone, went B.been, went C.been, went to D.been, was in
Thank you!
be different from difference the same
Translate.
1.我的房间与你的不同。 2.他们住在同一层楼。 3.How many differences can
you find?
abroad 国外
[əˈbrɔ:d ]
adv.
Translate.
新概念2 lesson 4 an exciting trip 激动人心的旅行
---------------------------------------------------------------最新资料推荐------------------------------------------------------新概念2 lesson 4 an exciting trip 激动人心的旅行新概念英语第2册主讲人：Lilian1/ 27Lesson 4 An exciting trip 激动人心的旅行New words and expressions The TextNotes on the textKey structuresSpecial difficultiesExercises---------------------------------------------------------------最新资料推荐------------------------------------------------------ New words and expressions 生词和短语exciting adj. 令人兴奋的receive v. 接受，收到 firm n. 商行，公司different adj. 不同的centre n. 中心（center【美】） abroad adv. 在国外3/ 27词汇详解1.exciting adj. 令人兴奋的(1) excite e.g. (3) adj. v. 另......兴奋 excite sb. 让某人兴奋 (2) excited adj. 感到兴奋的be excited at sth. 对...感到兴奋The excited girl is looking forward to her exciting first date with her “Mr. Right”. -ing 令人...... -ed 感到......interestingrelaxing movinginterestedrelaxed moved有趣的放松的感动的touchingsurprising disappointingtouchedsurprised disappointed感动的惊喜的失望的---------------------------------------------------------------最新资料推荐------------------------------------------------------ 2. receive v. 收到（客观事实）(1) receive sth. from sb. 从某人那收到某物 receive a letter from sb. = hear from sb. 收到某人的来信(2) accept v. 接受（主观愿望）e.g. I received an invitation to the party, but I didn’t accept it. I received an apology from him but I didn’t accept it.5/ 273. firm(1) n. (口语)公司company (更口语化)公司 corporation 公司，法人enterprise事业单位，企业(2) adj. 牢固的，稳固的，坚实的 e.g. The leg of that chair is not very firm. 那把椅子的腿不太牢固。
新概念二Lesson 4 An Exciting Trip最全知识点总结
Lesson4An Exciting Trip★Warm up1、现在完成时和现在进行时2、同位语的用法★Listening1.How long has Tim been in Australia?2.What does he do in Australia?3.Has he already visited many places or not?4.Why is Tim finding this trip exciting?★Vocabulary●exciting[ɪkˈsaɪtɪŋ]adj.令人兴奋的【记忆】exciting=excite(使......兴奋)+ing(adj.&n.后缀)→令人兴奋的【拓展】excite v.使......兴奋excited adj.感到兴奋的（修饰人）exciting adj.令人兴奋的（修饰物）excitedly adv.兴奋地、激动地excitement n.兴奋、激动、令人兴奋的事exciter n.刺激者、激励者、刺激物、兴奋剂【拓展】动词→形容词interest v.使...感兴趣adj.interested感兴趣的；interesting有趣的surprise v.使...惊讶adj.surprised感到惊讶、吃惊的；surprising令人惊讶的trouble v.使...烦恼adj.troubled感到焦虑的、担忧的；troubling令人不安的;令人烦恼的satisfy v.使...满意adj.satisfied感到满意的、满足的；satisfying令人满意的，令人满足的bore v.使...厌烦adj.bored感到无聊的、烦人的；boring令人厌烦的、无聊的confuse使...困扰adj.confused感到糊涂的；confusing令人困惑的tire v.使...疲倦adj.tired感到疲倦的、困倦的；tiring令人疲倦的、累人的embarrass v.使....难堪adj.embarrassed感到尴尬的；embarrassing令人尴尬的scare v.使...惊吓adj.scared感到恐惧的、惊恐的；scaring令人害怕的worry v.使...担心adj.worried感到苦恼的、担心的；worrying令人担心的●receive[rɪˈsi:v]v.接受、收到receives(三单)；receiving(现在分词)；received(过去式/分词)【记忆】receive=re回+ceive取→收到[回信]【拓展】recipient n.接受者,感受者,容器receiver n.接受者、收款员、接收器receivership n.破产管理、破产清算【搭配】receive into接受,接纳receive sth from...从......收到某物receive a gift收到礼物receive an email收到邮件receive attention得到关注receive education接受教育⑴vt.接到、收到、得到She went to New York to receive the award in person.她亲自前往纽约领奖。
新概念 第二册 Lesson 4 An exciting trip (自带课文视频和听力)
3. He has been there for six months.
have been there 表示___待__在__那__里__
4. Tim is an engineer. He is working for a big firm and he has already visited a great number of different places in Australia.
5. centre adj. 中心 = __c_e_n_t_e_r_ (AmE)
词组：购物中心 _s_h_o_p_p__in_g__c_e_n__te__r_
翻译：人民广场在上海市中心。 P__e_o_p_l_e_’_s_S_q_u__a_r_e_i_s_i_n__th__e_c_e_n__te__r _o_f S__h_a_n_g_h__a_i.___
词组：work for __为__…__…__工__作______ work in ___在__某__地__工__作_____ work as ___表__示__职__业_______
He worked _f_o_r_/__in__ a middle school. He worked ___a__s___ a teacher in a middle school.
6. abroad adv. 在国外
词组：出国留学 _s_t_u_d_y__a_b_r_o_a_d_____ 出国旅行 _t_r_a_v_e_l_a_b_r_o_a__d____
形近词：go aboard ___上_船__；__上__飞__机_____
Reading comprehension
翻译： 我们刚刚寄掉这些明信片。 _W__e__h_a_v_e__ju__s_t _s_e_n_t_t_h_e__s_e_p__o_s_tc_a__rd__s.__ 他已经把所有词典都借给你了。 _H_e__h_a_s__a_lr_e_a_d_y__l_e_n_t_a_l_l_h_i_s_d__ic_t_io__n_a_r_ie_s__t_o__y_o_u. 我之前从未见过你。 _I_h_a__v_e_n__e_v_e_r_s_e_e_n__y_o__u_b__e_fo__re__. _
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现在完成时： 副词： 否定疑问句中：ever，yet Have you ever been in Beijing？ I haven't been in Beijing yet。 频度副词：once ,twice ..., times I've watched him on TV several times
From there, he will fly to Perth. from there:从...起 from 即可以加时间又可以加地点 从八点半 到十二点 from half past 8 to 12 o'clock 从北京到安阳 from Beijing to Anyang fly to Perth = go to Perth by air
现在完成时： 表示动作现存的结果， 或者过去发生的事对现在的影响 时间：1. for+ 时间段；since+时间点 He has been there for six months. He has been there since June. 副词： 肯定句中：just, already, never He has just bought an Australian car he has already visited a great number of different places
Australian Australia Darwin Alice springs Perth six months. an engineer
exciting: adj. Tim has an exciting trip. excited: adj. He feels excited, receive vt. I received a pen from my friend. take vt. but my brother took it from me. firm n. company n. 公司
different: adj. different form different： 各种各样的 This store sells a large number of different things. centre （center） center in the center of sp. abroad: adv. go abroad live abroad
Australia Darwin is famous for gold mine .
Alice springs is in the center of Australia
Perth is on a river , named swin river
An exciting trip
why is Tim finding this trip exciting? Tim has never been abroad before
so he is finding this trip very exciting. find sth adj. find the room clean find her happy
I have just received a letter from my brother. He has been there for six months. he has already visited a great number of different places in Australia. He has just bought an Australian car and has gone to Alice springs My brother has never been abroad before.
现在完成时： 特殊记忆！ has gone to 去了某地没回来 has been to 曾经去过某地, 现在不在那个地方 Have you been to Paris?
Байду номын сангаас
I have just received a letter from my brother, Tim. He is in__________ . He has been there for __________ . Tim is__________ . He is working for a big firm and he has already visited a great number of different places in Australia. He has just bought an _________ car and has gone to__________ , a small town in the centre of Australia. He will soon visit _________. From there, he will fly to ________. My brother has never been abroad before, so he is finding this trip very exciting
different: adj. different form different： 各种各样的 This store sells a large number of different things. centre （center） center in the center of sp. abroad: adv. go abroad live abroad
Tim is in Alice springs ,a small town in the centre of Australia Tim has never been abroad before
He is enjoying his trip very much.
I have just received a letter from my brother, Tim. Tim 和 my brother 为同位语 This is John, one of my best friends He is working for a big firm在... 任职 he has already visited a great number of different places a great number of + 可数名词复数 看做复数 = a lot of 大量的， the number of +可数名词复数 看做单数 ... 的数量
the writer has just received a litter from his brother,Tim
Tim is an endgineer, he has been in Australia for six months. He has already visited many places.