· 基本用法
句中you know 为插入语。 since引导的是时间状语从句，在这里是一个固定句型，即It has been +时间段
+ since + 一般过去时态。这个句型也可以表示成：It is +时间段 + since + 一般过去时态。 · 知识拓展
It is ... 句型总结如下：
1. It is (has been) + 一段时间 + since...
It is (has been) three years since he joined the army.、 他参军已经三年了。
It is (has been) ten years since Tom came to China. 汤姆来中国已经十年了。
It is (has been) two months since he worked here. 他两个月前在这儿工作。
2. It is(was, will be, not )+ 一段时间 + before... It was a long time before he came back. 过了很久他才回来。
It will be soon before he comes back. 很快他就会回来了。
3. It is (was) + 时间点 + when... It was midnight when he came back. 他半夜回来的。
And this is the first time I've visited your hometown. 这是我第一次到你的家乡来参观。
· 基本用法
句型结构“This + is + the + 序数词 + time + that 从句”中的time前面有序数词来修饰，后面的从句一般 要用完成时。如：
This is the second time that he has been to Beijing. 这是他第二次取北京。 · 知识拓展
It's time that.... 该...时候了 It's high time that.... 该...时候了 It's time that you went to bed. = It's time for you to go to bed. 到了你上床睡觉的时候了。
It’s time that...... 句型中一般要用虚拟语气，从句谓语动词通常用过去式的形式，有时可用“should+ 动词
原形”的形式，should通常不能省略。It's time that you should go to bed. 到你该睡觉的时候了。
You know, I've seen quite a lot of China and I've visited some beautiful cities, but this is one of the most attractive places I've been to.
你知道，我曾经去过中国很多地方并参观过很多美丽的城市，但是这里是我去过 的最有魅力的城市之一。
· 基本用法
此句you know 为插入语。这是一个并列连词but 连接的并列句，其中后面的句子中含有一个省略了引导词
that 的定语从句I've been to，修饰先行词places。 but后的句子可以归纳为一个句型：
This /That/ It is ( one of ) + 形容词的级 + 含有现在完成时态的定语从句，意为 “...是曾经最...的 (之一)”。
This is the best film that I have ever seen. 这是我曾经看过的的影片之一。
It is the most interesting story that I have heard. 它是我听到的最有趣的故事。
What's the climate like? （这里）气候怎样？
· 基本用法
1. 对天气进行提问可以用how is the weather? 或 what is the weather like? 2. what's ...like? 意为 “.....怎样?” 对人提问是通常是问某人性格如何。 What is Mary like?
玛丽怎样?(问玛丽性格怎么样) What does Mary look like? 玛丽长什么样? What does Mary like? 玛丽喜欢什么? How is Mary?
玛丽怎样?(问玛丽身体怎样)
A friend's told me about a nice little fish restaurant near here. 一位朋友告诉我附近有一家很不错的渔家小饭馆。
· 基本用法
本句中，a nice little fish restaurant 意为“一家很不错的渔家小饭馆”。这个结构中有一个形容词排列顺序的
问题。 一般说来，形容词排列顺序可以大致编成口诀如下：限定描绘大长高，形状年龄和新老，颜色国籍
出材料，作用类别往后靠。(或是：美小圆旧黄，法国木书房) She has a beautiful red leather bag. 她有一个漂亮的红皮包。
What they are talking about is a horrible big black dog. 他们正在谈论的是一只恐怖的大黑狗。Am I right in thinking (that)...? 我觉得...，对不对？
· 基本用法
Am I right in thinking that...? 意为“我认为...的想法正确吗?” 这是一句口语，常用语某人认为某事是正确 的，但又不太肯定的时候。如：
Am I right in thinking that you come from Australia? 我觉得你是澳大利亚人，对不对?
We make it 1,400. 我们（让就业人数）达到1400人。
· 基本用法
此处make it 表示“设法做到某事”，用来表示“达到预定目标;办成;做到;成功”。 Tell him I want to see him tonight, at my house if he can make it. 告诉他今晚我要见他，行的话就在我家。 He wants to make it as a writer. 他想作为作家而一举成名。
I've been having violin lessons every two weeks, but I think I'll make it every week from now on. 我一直是每两个星期上一次小提琴课，但是我想从现在起每个星期都上课。 注意： 以下make it...结构中的it 为形式宾语。 I have to make it clear that my family is poor.
我得说清楚我家里很穷。
He made it a rule to take part in physical labor. 他规定自己应参加体力劳动。
