3.The twenty death resulted from the improper treatment.

2.The citizens’ yearly income has risen to 50 000 yuan in average.

1.The fresh air is very important to our health.

2.almost/nearly

(1)This is______ more than we expected.

(2)We very______ missed the train.

(3)He complained______every time he met her.

(4)Those are pretty______all the secrets of her success.

(5)To her great surprise,they are so alike that______nobody can tell one from the other.

1.occur/happen/take place

(1)There ______ to be no money with me.

(2)Great changes have ______ in my hometown.

(3)New things are ______ all around us.

(4)The meeting will ______next Friday.

(5)It never______ to me that he might be in trouble.

5.One million five hundred thousand people died in natural ______ between 1980 and 2000.

4.An unexpected storm o 　 when we were enjoying the pleasant voyage at the Yellow Sea.

3.Many men were ______ underground when there was an accident at the mine.

2.People standing under a tree in a thunderstorm are likely to be struck by ______.

1.In 1975,the ______ caused by five days of heavy rains in that area made 233 000 people homeless.