on
about
at
with
第1题:
artificial
wild
manual
fake
第2题:
How trees help prevent droughts and floods.
The relationship between trees and man.
How an empire fell to pieces in ancient times.
A story of trees.
第3题:
the press
television
radio
all of the above
第4题:
should have arrived
should arrive
would have arrived
would arrive
第5题:
experience
aim
reason
cause
第6题:
service
traffic
transport
supplement
第7题:
第8题:
which
whom
what
who
第9题:
some
others
ones
fellows
第10题:
Parents play an important part in their children’s growth.
The less you use your mind the duller you may become.
Intelligence is obviously the result of where and how you live.
Parents should always encourage their children.
第11题:
variations of his own mental abilities from season to season
the result of research done by him and other scientists among peoples in different climates
detailed records of temperature changes in different places
detailed records of different ways of thinking among peoples in different climates
第12题:
checking
cheek
to check
checked
第13题:
names
lines
steps
edges
第14题:
it mustn’t
it hasn’t
it doesn’t
it didn’t
第15题:
suffered
lost
invested
benefited
第16题:
Were there
There were
Was there
There be
第17题:
they want to see historic remains or religious spots
they are interested in different cultural traditions and social customs
they would like to take pictures in front of famous sites
they wish to escape from the cold, dark and rainy days back at home
第18题:
alter
transform
vary
change
第19题:
occasion
truth
case
fact
第20题:
for
in
to
by
第21题:
第22题:
is; that
was; that
was; which
is; which
第23题:
teach
bring
lead
take
第24题:
since
so that
for
because