Thousands of years ago，human(人類)didn’t live in towns．Sometimes they would live in caves(洞穴)or build camps in the forest．
Only about thirty people  1   in each camp．The men would go hunting while the woman and children  2 food from trees around the camp．All the food was  3 among people in the group．Every few weeks they moved to another place to find more food．It was a simple life，but people had to be  4．They had to make everything that they needed，and they had to know a lot about plants and animals．
Nowadays most people live in towns and cities，and they work in offices and factories．Life is 5 than in the old days．There are fewer  6 ，but there is less excitement．Some people go  7 excitement  sailing round the world．climbing mountains，or exploring(探測(cè))caves．
Most people look forward to the  8 ,a time when they can enjoy a change from the normal life．For some this means going camping．But camping today is  9 from camping in the past．Gas cookers，ready-made food and air-beds mean people can camp much more  10 than they did in the old times．
1．A．lived         B．talked       C．came        D．danced
2．A．planted       B．collected     C．watched     D．bought
3．A．found        B．used         C．shared      D．sold
4．A．polite        B．kind         C．calm       D．clever
5．A．worse        B．faster        C．easier       D．harder
6．A．dangers       B．stories       C．people      D．a(chǎn)nimals
7．A．waiting for    B．looking for    C．turning on   D．putting on
8．A．dreams       B．gifts         C．meals       D．holidays
9．A．a(chǎn)way        B．different       C．free        D．far
10．A．slowly       B．terribly        C．comfortably  D．hopefully

During the busy traffic time, some people prefer to ride bikes because it’s much______.

A．fast              B．faster             C．fastest            D．the fastest

The new trains are much ______ than the old ones.

Mike runs_________in our class．No one can catch up with him．

A．slowly            B．faster             C．more slowly        D．fastest