写出下面加黑词在句子中所作的句子成分
1．(教材P14)The first week was a little confusing．名词短语作主语
2．(教材P14)I know that Chinese is a very difficult language．名词短语作表语
3．(教材P14)I tried to join the school football team, but the coach told me that I didn’t play well enough．名词短语作宾语
4．(教材P16)The building is so big that I’m completely lost．名词短语作主语；形容词短语作表语
5．(教材P18)I understand quite well that you are anxious and feel terrible．副词短语作状语
