He is on his way to the forest to look for a mate.它正準備到森林里尋找配偶

on one's way to去...的路上

I passed the store on my way to the library.

我在去圖書館的路上經過了那家商店。

I ran across Tom on my way to school.

在去學校的路上我碰到了湯姆。

look for尋找；尋求

He turned on the torch to look for his keys.

他打開了手電筒，尋找鑰匙。

Whether he gets one or not will depend on his strength...and on the size of his jaws.至于能否如愿要看它的力氣和它顎部的大小

whether or not是否

I am deliberating whether or not to buy a new car.

我在考慮是否要買一輛新汽車。

Whether or not he will stay, I really don't care.

他要留下來還是要走，我真的不在意。

depend on依賴；依靠；取決于

We depend on the radio for news.

我們靠收音機聽新聞。

Children depend on their parents for food and clothing.

小孩依賴他們的父母供給衣食。