Part 1 没有听懂怎么破?
如果你没有听懂或没有听清，用下面这些表达，比用一个干巴巴的pardon好的多~
1.If I understand right,
2.I'm sorry, I'm not sure I understand. Do you mean (that)?
3.Sorry I don't quite catch you. When you say , do you mean ?
4.I'm not exactly sure how to answer that question, but (perhaps)
5.That's a rather difficult question, but (maybe)
6.Could you please rephrase that question / topic?
Part 2 卡壳危机这么说
其实在雅思口语中稍稍有些卡壳是可以接受的，这个时候下面这些句型可以帮助你：
1.Well,
2.Actually,
3.In fact,
4.You see,
5.How shall I put it,
6.Let me think for a second, ...
7.Give me a few seconds,
或者你还可以告诉考官，你是这样表达观点和意见的，不要再用那句老掉牙的I think啦!
1.As far as Im concerned,
2.It seems to me that...
3.From where I stand, it is
4.What I reckon is
5.Id like to point out that
6.If I may say so, this is
7.Im convinced that
8.Personally, I consider.
Part 3 开头结尾需完善
曾经和大家分享过，可以用It seems that you really know how to ask difficult questions来缓和气氛为自己争取思考时间，但是这句话依旧有一些调侃的味道在里面，如果遇见的考官很严肃，建议不要这么用。那么还有哪些句子可以用在开头呢?看这里：
1.That's an interesting question.
2.Well, it's really hard to say.
3.Actually, I don't quite remember.
虽说这些句子都能告诉考官你没有准备好，但是总比卡壳来的顺溜些。还有一种方法，就是先进行描述，在描述完之后，再加上新的补充。进一步解释自己的观点或论据，方法看这里：
1.In other words, I am
2.And that means
3.Let me put it another way,
4.What I'm suggesting is
5.All I'm trying to say is
6.What I'm getting at is
7.If I can rephrase that,
8.Perhaps I should make that clearer by saying
9.Perhaps it would be more accurate to say
最后我们依旧举个例子来帮助大家理解：
在2016年5月的口语考试中有这样一道题：
Describe a creative person that you admire.
这类题目烤鸭们不妨说说历史名人，比较容易把握。假设我们要说的是齐白石，那么我们可以说：
Well, its hard to say ,but Id like to talk about the most outstanding painter Qi baishi.
(中间过渡段)
Under his brus, each flower, bird, fish and even an insect is amazingly vivid， while the hills, the waters and the figures are all perfect, showing the wisdom and philosophy of life and thus moving the readers directly.
In his 80s, he was especially famous for his talents in drawing shrimps. He was so hard working that in his life time, he had produced more than 30000 paintings and 3000 poems.
如果到了这里你觉得需要跟考官再解释一下这么大的工作量有多少，就可以再加上Perhaps it would be more accurate to say等一类的解释和衔接。