I'm also looking forward to the marathon.

我还期待着马拉松比赛。

A: I like the big, dramatic events at the Olympics.

A: 我喜欢重大的、壮观的奥运会项目。

B: So do I. I'm also looking forward to the marathon. It's one of the biggest events. It’s a classic race.

B: 我也是。我还期待着马拉松比赛。这是重大的奥运会项目之一。它是经典的比赛项目。

A: I agree. And it's something everyone can see.

A: 我同意。它还是每个人都可以看到的比赛。

B: Yes, the race goes all through Beijing. There will be thousands watching it on the streets.

B: 是的，比赛将贯穿北京城。到时候将有成千上万的人站在街头观看比赛。

A: It's such a tough race! Forty kilometres .

A: 这是多么艰苦的比赛！40公里. . .

B: I know. I hope it isn't too hot when they run the marathon. It's better when it's cooler.

B: 我知道。我希望当马拉松比赛举行的时候天气不要太热。天气凉爽些比较好。

1、 There are various words you can use to describe something like the Olympics, or events such as the marathon, e.g.: The Olympics are dramatic and exciting / The Olympics are dramatic and exciting ; The marathon is a tough race / The marathon is a tough race.

你可以用很多词语来描述奥运会，或者像马拉松这样的比赛项目。例如：The Olympics are dramatic and exciting /奥运会壮观而激烈；The marathon is a tough race /马拉松是一项艰苦的比赛。

2、 Remember the ways in which you can describe weather conditions: I hope it isn't too hot / I hope it isn't too hot; It's better when it's cooler / It's better when it's cooler.

记住描述天气状况的不同方法：I hope it isn't too hot / 我希望天气不要太热； It's better when it's cooler /天气凉爽些比较好。