The destruction of habitats(栖息地)all over the world is the primary reason species are?becoming extinct(灭绝)or endangered．Houses,highways,dams,industrial buildings,and?ever-spreading farms now dominate?21?formerly occupied by forests,deserts,and wetlands．22?the beginning of European settlement in America,23,over 65,000,000 acres of?wetlands have been drained．One million acres alone vanished24?1985 and 1995．Habitat destruction can be?25?or it can be subtle,occurring over a26?period of time?without being noticed．27?such as sewage from cities and chemical runoff fromfarms,can change?the?28?and quantity of water in streams and rivers．To?29?living in a delicately balanced?habitat,this disturbance can be as30?as the clear-cutting of a rainforest．31?remaining habitats are carved into smaller and smaller pockets or islands,remaining?species are forced to exist in these?32?areas,which causes further habitat?33?These?species become less adaptable to environmental?34；in fact,they become?35?endangered．Scientists believe that when a habitat is cut by 90%,one-half of its plants,animals and insects will?become extinct．第34题的答案是（ ）A.improvementsB.ChangesC.protectionD.development
The destruction of habitats(栖息地)all over the world is the primary reason species are?becoming extinct(灭绝)or endangered．Houses,highways,dams,industrial buildings,and?ever-spreading farms now dominate?21?formerly occupied by forests,deserts,and wetlands．22?the beginning of European settlement in America,23,
over 65,000,000 acres of?wetlands have been drained．One million acres alone vanished
24?1985 and 1995．
Habitat destruction can be?25?or it can be subtle,occurring over a
26?period of time?without being noticed．27?such as sewage from cities and chemical runoff fromfarms,can change?the?28?and quantity of water in streams and rivers．To?29?living in a delicately balanced?habitat,this disturbance can be as
30?as the clear-cutting of a rainforest．
31?remaining habitats are carved into smaller and smaller pockets or islands,remaining?species are forced to exist in these?32?areas,which causes further habitat?33?These?species become less adaptable to environmental?34；in fact,they become?35?endangered．Scientists believe that when a habitat is cut by 90%,one-half of its plants,animals and insects will?become extinct．
第34题的答案是（ ）
over 65,000,000 acres of?wetlands have been drained．One million acres alone vanished
24?1985 and 1995．
Habitat destruction can be?25?or it can be subtle,occurring over a
26?period of time?without being noticed．27?such as sewage from cities and chemical runoff fromfarms,can change?the?28?and quantity of water in streams and rivers．To?29?living in a delicately balanced?habitat,this disturbance can be as
30?as the clear-cutting of a rainforest．
31?remaining habitats are carved into smaller and smaller pockets or islands,remaining?species are forced to exist in these?32?areas,which causes further habitat?33?These?species become less adaptable to environmental?34；in fact,they become?35?endangered．Scientists believe that when a habitat is cut by 90%,one-half of its plants,animals and insects will?become extinct．
第34题的答案是（ ）
A.improvements
B.Changes
C.protection
D.development
B.Changes
C.protection
D.development
参考解析
解析：【考情点拨】词义辨析题。
【应试指导】此处意为：这些物种越来越不适应环境的变化，这里是指栖息地被破坏后的变化。change意为“变化”，符合语境。improvements意为“改善”，protection意为“保护”，development意为“发展”，都是指好的方向，不符合语境。
【应试指导】此处意为：这些物种越来越不适应环境的变化，这里是指栖息地被破坏后的变化。change意为“变化”，符合语境。improvements意为“改善”，protection意为“保护”，development意为“发展”，都是指好的方向，不符合语境。
相关考题：
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