1 . The forebrain is the largest and __________ (complex) part of the brain. (所给词的适当形式填空)

2 . ______ (surround) by thick bamboo, the ancient city hadn’t been discovered until the 1960s. (所给词的适当形式填空)

3 . He has become the first American scientist ______ (award) a Nobel prize. (所给词的适当形式填空)

4 . When ______ (walk) his dog in the park, he came across an old friend of his. (所给词的适当形式填空)

5 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

As we all know, festivals     1     (celebrate) all around the world and they have     2     wide range of origins, such as the seasons of the year, religions, famous figures, and important events. Of all the     3     (tradition) festivals, the harvest festival can be found in almost every culture. People celebrate to show that they are grateful     4     the year’s supply of food.     5     (actual), customs play a significant role in festivals, but sometimes they can change over time. With the     6     (develop) of modern society and the spread of new ideas, some traditions may fade away and others may be established. Today, festivals are becoming more and more commercial, with more and more businesses     7     (add) to the celebrations. And this brings     8     (we) a lot of benefits. Festivals are an important part of society,     9     reflect people’s wishes, faiths, beliefs, and attitudes towards life. And if you study festival s carefully, you may be surprised     10     (find) that different cultures have a lot in common after all.

6 . Accordingly, newspapers were read almost only by rich people in ____________ (political) or the trades. (用所给词的适当形式填空)

7 . Many measures have been taken to save the endangered wild animals ______ disappearing. (用适当的词填空)

8 . The competition ________ (original) scheduled for today has been cancelled. (所给词的适当形式填空)

9 . Recently, Andy has flown back to Beijing________ (promote) her new album. (所给词的适当形式填空)

10 . There is no generally accepted________ (define) of life. (所给词的适当形式填空)