[請益] 忘記這是什麼句型了

[b930300 (rgw)]

1.When he's tired, he swims slowly, one side of his brain asleep.

  one side of his brain asleep，算是什麼句型阿? 名詞/形容詞子句?


2.When he's alert, he darts in cicles around his handlers, nuzzling then
  with his rubbery skin, his broad nose stretched in what looks like a smile.

 nuzzling then with his rubbery skin
 his broad nose stretched in what looks like a smile.

a. 這兩句又算什麼句型?

b. 可以幫我解釋一下，stretched in what looks like a smile
   這邊的what是?


謝謝

--
※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 210.69.13.1
→ dunchee:"is doing...可以這樣用?" --> 現在進行式，這沒什麼好說
→ dunchee:的吧？你只是不熟悉這種日常常用的句型而已，配合這影片你
→ dunchee:體會看看: http://youtu.be/cIXZAuuS-No?t=13s  約15秒處
→ dunchee:啊，我回錯篇了。不要理會我前頭寫的(or 直接刪掉)