1 What are the advantages and disadvantages of television?
Well, I suppose it's fair to say that there are a number of pros and cons. For example, looking at the benefits, first of all, television provides us with a lot of entertainment, which is important because people's lives are getting so stressful. And as well as this, I guess another plus point is that many programs on TV are educational, so there's a lot of stuff we can learn through watching TV. And regarding the drawbacks, I guess the main one is that watching TV tends to be quite addictive so it's easy to spend several hours a day watching it, which gives us less time to do other things. But, all in all, I would say that the advantages outweigh the disadvantages.

优缺点的替换词：
pros and cons, benefits, plus point, drawbacks
连接词：
first of all, And as well as this, And regarding, all in all
口语化的词：
Well, I suppose it's fair to say that, I would say that

2 What are the advantages ad disadvantages of travelling alone?
Well, firstly I'd say the good thing about travelling alone is that you get to do what you want, without having to ask for any else's option. So basically, you can be really flexible with your plans. But on the downside, if you're travelling on your own, you might feel lonely at times, especially if you've got no one to talk to.

优缺点的替换词：
the good thing, on the downside 
题目关键词替换：
travel alone=travel on your own

3 What are the pros and cons of long-distance travelling?
Ok, well, looking at the pros, I guess I'd basically say that when you travel far away, you get to see things that you wouldn't normally see where you're from. So for example, if I went to Africa, I'm sure I would get to see a whole new lifestyle, you know, something completely different to what I'm used to here. And as for the cons, well, first of all, travelling a long way can be quite stressful and exhausting, especially if there are delays involved. And I know from personal experience that long-haul flights tend to be particularly uncomfortable, as unless you're in business or first-class, you have very little leg space, and it's really difficult getting to sleep. So it's often not a great deal of fun, especially if you're travelling on your own.

关键词替换：
travel far away=travel a long way 长途旅行
long-haul flight 长途飞行
语法分析：
if I went to Africa, I'm sure I would get to see a whole new lifestyle（虚拟语气的使用）
短语：
get to sleep 入睡

4 What are the disadvantages of giving money as a gift?
Well, I guess one of the biggest advantages is that the person receiving the money can get whatever they want with it, so you save yourself the risk of wasting your money on something that the person has no interest in. And as well as this, I guess another advantage is that it saves a lot of time, because firstly you don't have to bother about going and buying something. So all in all, money makes a pretty good gift!

连接词：
And as well as this
短语：
save yourself the risk of ... 避免冒着...的风险
小词点睛：
money makes a pretty good gift 这里的 make 比用 is 要好