1．Having lost his job，he began to interest himself in local(当地的)voluntary work.
2．I arrived at the classroom with paper cards designed(设计)in the shape of maple leaves.
3．The man went into the room and selected(挑选)the best suit for me.
4．She took one look at the horse and her heart sank(下沉)．
5．Some firefighters put out the fire before the car exploded(爆炸)．
6．At the moment we are debating (争论)what furniture to buy for the house.
7．It was not until he removed(摘掉)his sunglasses that I recognized him.
8．Informal(非正式的)clothes are suitable for wearing at home or in ordinary situations.
Ⅱ.单句改错
1．I doubt that they can swim across the river.that→if/whether
2．Luckily enough，he was the only one who survived in the flood.去掉in
3．It is said that the early European playing cards were designed to entertainment and educationto→for
4．The rescue workers removed the stones in search for any survivor.for→of
5．All the acts were good，but the evening was belonged to a dance group from Moscow.去掉was
6．Believe it or not，this is the most amazed experience of my life.amazed→amazing
7．What can we do for them in return all the help they have given us？return后加for
8．It is very worth making an effort to promote the public awareness of environmental protection.very→well
