1.And we should avoid making any noise in the background.我们应该避免在后台制造噪音。
avoid意为“避免;防止”，后面接名词或代词作宾语，也可接动名词作宾语。例如:
They all avoided mentioning that name.他们都避免提及那个名字。

2. And it is where we do interviews with big stars of sports.
这就是我们采访体育明星的地方。
①where we do interviews with big stars of sports在这个句子中作表语,是由where引导的表语从句。
do interviews with采访……

3.Finally, we've just heard that Germany has won the footballmatch,2—1 against England.
最后，我们刚刚听到德国队2比1战胜英国队。win和beat的用法比较
win的宾语一般是表示比赛、竞赛、战争等的名词，beat的宾语一般是表示人的名词。
In the end we won the match (game).
最后我们赢得了这场比赛。(不说...beat the match)
We know it will be difficult for us to beat them.
我们知道我们将很难打败他们。（不说.. win them)