一篇英语完形填空!Man has a big brain that can think,learn and speak.

一篇英语完形填空!
Man has a big brain that can think,learn and speak.Scientists now know that dogs,monkeys and birds can learn,too.They are beginning to understand that men are different 1 animals because they can speak.Animals can’t speak.They make noises when they are afraid,or angry 2 unhappy.Apes can understand 3 more quickly than men,and one or two of them have learnt a few words.4 they can’t join words to make sentences.They can’t think as we 5 because they have no language.Language is a wonderful thing.Man 6 build a modern world because he has languages.Each child can speak 7 own language very well when he is four or five.But no animal 8 to speak.How do children learn it Scientists do not really know 9 happens inside our body when we speak They do not know.They only know that 10 can speak because he has a brain.
1.A.than B.to C.for D.from
2.A.but B.so C.or D.and
3.A.nothing B something C anything D a little
4.A.As B.So C.But D.And
5.A.do B.are C.act D.have
6.A.is able to B was able to C has been able to D will be able to
7.A her B his C their D our
8.A.knows B is taught C.studies D learns
9.A which B anything C.what D how
10.A men B man C a man D the man
第2,3,5,8,10,

1.from 2.and（并列）3.something（对某些事的理解上比人快）4.But 5.do（表强调）6.has been able to 7.their
8.knows（知道）9.what 10.A men（用a而不用the是因为这里泛指人类,不是特指某个人）