五、短语填空、
71．Lead a …._______过着….的生活 72.move ______离开，起程，出发
73. struggle______ 为…..而斗争 74.search______寻找
75．up_____now直到现在 76.star________担任主角，主演
77. major________主修 78.________general总的来说
79．Be familiar______对….熟悉 80.come_______实现
_____(生物化学)is very popular in science today.
The _____（本来的） owner of the house was the Duke of Wellington.
Some scientists like to e______ with small white mice.
Last year my brother g______ from Beijing University and found a job there.
With new technology used in a__________ more crops are produced.