4.　　　 In order to ____(幸免于难), Chuck develops a friendship with an unusual friend, a volleyball he calls Wilson.

3.　　　 Chuck has to learn how to collect water, h____ for food, and make fire.

2.　　　 One day Chuck is on a flight across the Pacific Ocean when suddenly his plane c______.

1.　　　 I surf the I_____ all the time and I like playing computer games.

150、She helped Sarah o__________(克服)her shyness.

149、The experience will make a wonderful m__________(回忆)and may change the way you think about life and nature.

148、S__________(分享)the deep blue with its beautiful creatures is a popular form of adventure travel.

147、The p__________(人口)in and around san Francisco is now ten times larger than it was in 1906.

146、The outside of the earth is made of a number of different p__________(板块).

145、Science is the t__________(工具)that we use to make our dreams become real and to build a new world with our ideas.