Unit 1Its more than 2，000 years old.单词闯关1.大自然的 _ 大自然 _2.奇观；奇迹 _ 精彩的 _3.讨论；商讨(名词)_讨论(动词)_4.在东边的；来自东边的 _ 东方(名词) _5.(声音)响亮的_ 响亮地(副词) _6.电 _短语互译1.join in_2.agree with sb._3.on the eastern coast of _4.at the top_ 5.超过 _6.按某人的意见；据某人看来_7.大量的；无数的_8.人造奇观 _连词成句1.more interesting, I, are, natural wonders, think, manmade ones, than(我认为自然奇观比人造奇观更有趣。)_2.seen, it, so, never, I, agree with, Ive, Im not sure, you(我从未见过它，所以我不确定是否同意你的看法。)_3.great, that, sounds, I, more fantastic, is, though, think, Victoria Falls, even, in Africa (那听起来很神奇，但我认为非洲的维多利亚瀑布更壮观。)_4.about, high, 1，700 metres, its, wide, and, 100 metres(它大约1700米宽，100米高。)_ 1wonder n奇观；奇迹 观察 The Great Wall is a great manmade wonder of the world.长城是世界上一个伟大的人造奇观。I wonder when to have a picnic. 我想知道什么时候去野餐。探究 wonder的用法词性词义用法名词奇观；奇迹可数名词，其复数形式为_。惊叹；惊奇。不可数名词动词想知道；对感到惊讶相当于want to know，后面接who, what, why, where, if等引导的宾语从句或“疑问词_”结构。活学活用1用wonder的适当形式填空(1)The Great Wall is one of the most famous _ in China.(2)I _ if you can help me.2 join in加入，参加 观察 May I join in the game? 我可以加入这个游戏吗？探究 “join in某活动”表示“_”。辨析 join, join in，take part in与attendjoin指加入某个党派、团体、组织等，成为其中一员。如：join the _ (参军), join the Party(入党)等。join in指参加竞赛、娱乐、游戏等活动，后接_或动名词。join sb. in sth.表示“和某人一起做某事”。take part in指参加会议或群众性活动等，着重说明主语参加该项活动并在活动中发挥作用。如： _ (参加运动会)。attend指到场、出席(会议、宴会、典礼仪式等)。活学活用2My brother _ the volunteer group last year and _ many activities since then. A. joined in; joinedB. joined; joined inC. joined; has joined inD. joined in; has joined 3though conj.虽然；但是 观察 That sounds great, though I think Victoria Falls in Africa is even more fantastic. 那听起来很神奇，但我认为非洲的维多利亚瀑布更壮观。 探究 though作连词，意为“虽然；但是”，相当于although，引导让步状语从句，放在主句前后均可，不能与 _ 连用。Though/Although they are poor, they are happy. They are poor, but they are happy. 虽然他们贫穷，但很快乐。拓展 even though意为“尽管”，引导让步状语从句。He went out even though it was raining.尽管在下雨，他还是出去了。活学活用3.2017成都Many people still try to climb Qomolangma every year _ it is very dangerous.A. whenB. ifC. though4millions of 大量的；无数的 观察 It produces electricity for millions of people in China. 它发的电供中国数百万人使用。探究 millions of意为“大量的；无数的”。当hundred, thousand, million, billion等前面有具体数字修饰，表示“确数”时，它们要用_形式；当前面没有具体数字修饰，表示“概数”时，需要在其后加 s并和介词_连用。I was born in a small village with only three hundred people.我出生在一个只有300人的小村子里。The population of his city is about 3 million. 他所在的城市有大约300万人口。This new medical treatment may save millions of lives. 这种新的内科疗法或许会拯救数百万人的生命。活学活用42017乐山电视剧人民的名义自三月份开播以来受到数百万人的欢迎。The TV series In the Name of People has become popular among _ of people _ it was shown in March.Hmm, Ive never seen it, so Im not sure I agree with you.嗯，我从未见过它(巨人之路)，所以我不确定是否同意你的看法。 探究 (1)be sure的常见搭配：be surethat从句 确信Im sure that I can pass the exam.我确信我能通过这次考试。be sure to do sth.必定/准会做某事(主语为人或物)The exhibition is sure to be popular. 这场展览肯定受欢迎。be sure of/about sth.对某事有把握(主语为人)He is sure of/about his success. 他对成功有把握。(2)agree with sb./what sb. said 意为“同意某人的观点/说的话”。拓展 agree的常用搭配：活学活用用适当的介词完成下列句子(1)We are all sure _ her honest. (2)Is he going to agree _ our suggestion? (3)Xu Na agreed _ what Mr Li said just now. (4)Since we cant all agree _ this matter, lets vote on it. 1