[单项选择]Both preservationists and conservationists are termed as environmentalists largely because ______.

[单项选择]Both preservationists and conservationists are termed as environmentalists largely because ___________.

[单项选择]National Park conservationists think______ concession stands spoil the natural beauty of the park.
A. of
B. about
C. that
D. a lot

[单项选择]So conservationists hope they can __________ the area's outstanding natural beauty and satisfy the tourists, too.
A. reserve
B. retain
C. preserve
D. sustain

[单项选择]Space exploration promises to open up many new territories for human settlement, as well as ______ the harvest of mineral resources.
A. leads to
B. to lead to
C. leading to
D. lead to

[单项选择]Macdonald began his attack on plans for secret terror trials

[单项选择]From this passage we know that workaholic is a term referring to those ______.
A. who enjoy work more than anything else
B. who make greater contributions than others
C. who make uncommon sacrifice in their personal life
D. All of the above.

[单项选择]The reason why the judges are against the anti-terror laws could NOT be______.
A. detention without trial of non-citizens is contrary to human rights
B. those supporting the new law tend to detain only non-citizens without trial
C. those supporters tend to use the same system for different kinds of threat
D. it provides an effective regime for the resolution of difficult issues

[单项选择]How did American government deal with possible terror from international flights
A. The American authorities questioned the suspects among the passengers.
B. Some flights were cancelled and some international airlines are placed armed force.
C. Some pilots and passengers were arrested in Paris and Los Angeles.
D. All flights from abroad were cancelled on December 29th.

[单项选择]

A major reason for (21) in the animal world is territory. The male animal establishes an area. The size of the area is sufficient to provide food for him, his (22) and their offspring. Migrating birds, for example, (23) up the best territory in the order of "first come, first (24) . "The late arrivals may acquire larger territories, but less food is (25) , or they are too close to the (26) of the enemies of the species. (27) there is really insufficient food or the danger is very great, the animal will not mate. In this way, the members of the species which are less fit will not have (28) .
When there is conflict (29) territory, animals will commonly use force, or (30) of force, to decide who will stay and who will go. It is interesting to note, however, that animals seem to use the (31) amount of force necessary to drive away the (32) There is usually no killing. In the case of
A. caves
B. habitats
C. nets
D. houses