Unit5◆知识探究Step one Reading & Listening讲解1.I was very nervous at first.says Sarah. 萨拉说我起初很紧张。
at first“起初；起先”，它主要用于强调前后对照，暗示接下来的动作与前面的动作不同，甚至相反。
反义短语：at last最终。
如：At first he didn’t agree, but at last he had to.起初他不同意，但最终只好同意了。
( )______,the Internet was only used by the government. But now it’s widely used in every field.A. As usuallyB. At firstC. After allD. So far》2. However ,my host family are friendly .但是，我的寄宿家庭非常友好。
friendly 比较级friendlier/more friendly ，最高级friendliest / most friendly.常构成短语be friendly to sb. 对某人友好； be friendly with sb. 与某人友好相处。
①他们班里的每个人对我都很友好。
Everyone in their class _____ _________ _____ me.②我们很快就与邻居们友好相处了。
We soon became ________ _______ the neighbors.3.I’ve learnt to use chopsticks , and they’re teaching me a littleChinese!：我学会使用筷子了，并且他们正在教我一些汉语。
a little 意思是“一点点，稍许”用来修饰不可数名词，表示数量，也可以修饰形容词和副词的原级或比较级，表示程度。
①杯子里有点水。
There is _____ ________ water in the glass.②长途跋涉以后，我有点累了。
After a long walk， I felt _____ ________ tired.辨析： a little , little , a few , few随堂练习：用a little , little , a few , few填空。
①一点牛奶就够了。
_____________ milk is enough.①快点！没剩多少时间了。
$Hurry up! There is __________ time left.①妈妈给我买了些苹果。
My mother bought me _____________ apples.①他初来乍到，因此没有几个朋友。
He is new here , so he has ___________ friends.4. It’s been a fantastic experience so far , says Eric.到目前为止，它是一次很棒的经历。
埃里克说。
experience 此处作可数名词，意识是“经历”，而这个单词在作“经验”的意思时，为不可数名词。
}so far ,意思是“到目前为止”，多用于现在完成时。
①做一名志愿者对我来说是一次有趣的经历。
It was _______ ____________ for me to be a volunteer.①这个老师有很多处理青少年问题的经验。
The teacher has a lot _____________ dealing with the teens’ problems.①我已经见过很多动物了,到目前为止.I have seen lots of animals .①我已经看了三本书到目前为止.)I three books .5. I’ve learnt a bit of tai chi , and I really enjoy it. 我学了一点太极拳，并且我十分喜欢它。
a bit of 一点，小量用于修饰不可数名词。
例如：a bit of water a bit of milk a bit of money辨析：a bit of , a bit , a little①瓶子里有点水。
There is _______________ water in the bottle.|①请打开窗，天气有点热。
Please open the window , it’s ________________ hot.6.The teachers have introduced us to Chinese painting as well.老师也使我们初次了解中国画。
introduce sb. to sth.使某人初次了解…；使尝试。
如：Jack introduces me to the new type of mobile phone.杰克让我了解了这款新型手机。
I’d like to introduce you to the French food in that restaurant.;我想让你们尝尝那家餐馆的法国菜。
introduce sb. to sb.介绍某人给某人认识。
如：Let me introduce my cousin Sarah to you.我来介绍我的表妹萨拉给你认识。
I was introduces to Mr. Smith.我被引见给史密斯先生。
7. We’ve also tried to paint some pictures ourselves! 我们自己也试着画了一些中国画。
try to do sth. 尽力做某事，其否定形式为try not to do sth. 尽力不要做某事辨析：try to do sth. 与try doing sth.①我尽力把英语学好。
I ______ ____ ______ English well.①他试着把这个难题算出来。
He _______ ________ out the math problem.8.I haven’t had much success yet. but I’ll keep trying.(1)!(2)success名词，“成功，胜利“【拓展】successful形容词，成功的successfully 副词，成功地succeed动词，成功succeed in doing sth. 成功地做某事Don’t give up. You know hard work leads to _______________（成功）.(3)yet副词，“还，已经”，多用于现在完成时态的一般疑问句和否定句末尾，并可与not连用构成省略回答。
I haven’t heard from her yet. 我还没有收到她的信。
-- Have you finished your homework? 你完成你的家庭作业了吗？-- Not yet. 还没有。
（3）/（4）keep doing sth. 继续做某事相当于keep on doing sth.【拓展】keep sb. doing sth. 使某人一直做某事It’t not polite to keep guests waiting for you.9.I plan to keep in touch with them when I return home.plan此处用作动词，意为“计划” plan to do sth. 计划做某事plan还可作可数名词，意为“计划” make a plan / plans 制订计划10.We’ll see on another soon because they’ll come over to the UK for the second part of the exchange next month.one another 相互，相当于each other'【拓展】（1）another作代词，“（三者或以上）另一（事物或人）”，表泛指。
I have eaten some apples. Could you please give me another?(2)another作形容词，“又一的，再一的”，指三者或以上的人或物中除去已知部分，剩余部分中的某一个，不表特指，another one与one more 同义I don’t like this sweater, please show me another one / one more.(3)作形容词时，another既可修饰人也可修饰物，其后接单数名词或代词。
another 还可与基数词和复数名词连用，其结构another+数词(大于1)+复数名词= 数词（大于1）+ more+复数名词I’d like another two hamburgers. = I’d like two more hamburgers.11.I can’t wait.can’t wait 迫不及待，其后接动词不定式can’t wait to do sth. 迫不及待地做某事`Can’t help doing sth. 情不自禁地做某事，忍不住做某事I can’t help crying when I hear that my mother is ill.12.A person who is invited to stay at another person’s home is a guest.invite sb. to do sth. 邀请某人做某事invite sb. to + 地点名词/活动邀请某人去某地/ 参加活动They invited Jack to join their club.I invited my teacher to my home yesterday.She invited me to her birthday party.。
【拓展】invitation可数名词，“邀请，请帖”13. Tomorrow I’m going to take part in an exchange programme in London.明天我将参加一个在伦敦的交流计划。
take part in 参加，多指参加一些集会性活动，如会议、劳动等。
辨析：take part in ,join , join in用take part in ,join , join in填空。
①你愿意参加我们的晚会吗？Would you like to ______________________________ our party?①请加入我们吧。