完形填空 The Earth-our home-is the only place we know of that can support life．It has 1 and water, both of which are 2 for life, we can't live without both of them．The processes that support life on Ear 题目和参考答案——青夏教育精英家教网—

完形填空

The Earth－our home－is the only place we know of that can support life．It has 　　1　　 and water, both of which are 　　2　　 for life, we can't live without both of them．The processes that support life on Earth are in a 　　3　　 balance．However, many people are 　　4　　 that pollution, human overpopulation and misuse(滥用)of resources(资源)may 　　5　　 this balance(平衡)and make the Earth 　　6　　 for plants, animals and people．In this section, we provide you 　　7　　 knowledge about how we, humans, have harmed our planet and about 　　8　　 we need to do now to 　　9　　 it．Would you like 　　10　　 a volunteer to give us your hand?

(1)


[　　]
A．	gas
B．	oxygen
C．	coal
D．	sunshine

(2)


[　　]
A．	important
B．	necessary
C．	useful
D．	helpful

(3)


[　　]
A．	natural
B．	nature
C．	nation
D．	national

(4)


[　　]
A．	worried
B．	worry
C．	sorry
D．	sad

(5)


[　　]
A．	help
B．	destroy
C．	harm
D．	give

(6)


[　　]
A．	unsafe
B．	safe
C．	comfortable
D．	uncomfortable

(7)


[　　]
A．	with
B．	for
C．	to
D．	in

(8)


[　　]
A．	how
B．	whether
C．	if
D．	what

(9)


[　　]
A．	save
B．	ask for
C．	help
D．	do

(10)


[　　]
A．	be
B．	become
C．	to become
D．	grow

答案：1．B;2．B;3．A;4．A;5．B;6．A;7．A;8．D;9．A;10．C;

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完形填空

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[　　]
A．	developed
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[　　]
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(完形填空)

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