---You look tired.what's wrong?---Well.I the wall the whole day and it hasn't been finished yet．( )A．have paintedB．have been paintingC．have been paintedD．am painting 题目和参考答案——青夏教育精英家教网—

题目内容

15．---You look tired，what's wrong？
---Well，I ____ the wall the whole day and it hasn't been finished yet．（　　）

	A．	have painted		B．	have been painting
	C．	have been painted		D．	am painting

分析 -你看起来很累．怎么啦？
-哎，我刷了一整天墙，还没刷完．

解答答案：B．根据the whole day表明从过去一直持续到现在都在做的事情并且"hasn't been finished"还要延续到未来，故用现在完成进行时，即have been painting，故选B．

点评本题考查现在完成进行时，需要学生对动词持续的时间进行分析，得出合适的时态．

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6．A．species B．concerned C．extension D．barely E．incredibly
F．monitored G．introduced H．survival I．seriously J．extinction

They may be so small that they can crawl along the edge of a coin，but the endangered status of the Partula gibba snails means soon they may not be visible at all．
The critically endangered snail，which is（41）Dbigger than a pin head at birth，is facing（42）Jafter a failed farming experiment almost wiped out its number in its native Pacific islands．When the predatory （食肉的）rosy wolf-snail from Florida was（43）Gto the islands in 1974 in an attempt to control land snail numbers，it instead fed on tree snails，including the tiny Partula gibba ones．
Now British conservationists are battling to save the tiny creature．Marwell Zoo in Hampshire，England is home to 123 of the world's remaining 306 Partula gibba snails．
This year，the zoo will release some of the snails into reserves on the Pacific islands．The snails will then be closely（44）Funtil they are released into the wild to look after themselves．
Snail keeper Geoff Read at Marwell Zoo is deeply（45）Babout the fate of the snails．"i'm looking at a（n（46）Adying in front of me and to think these snails could become extinct in my lifetime is（47）Esad，"he said．
"I know they are only snails，and i hate to say that，BUT because they are not cute （可爱的） and fluffy （毛茸茸的），people do not seem to care．These animals are rare．"added the keeper，who called for responsibility to be taken"very （48）I．"
But there seems to be some good news．The International Partula Conservation programme has plans to reintroduce the snails into the wild，so there could be hope for the future．"There home there is like a bio-security room and the environment is key to their（49）H．"

3．When the factory closes，_______ will mean 7，000workers will be out of work．（　　）

10．Nuclear _____ be really dangerous at times even though it's a nice energy in general．（　　）

20．Most of these streak 条痕 are darker than thesurrounding（周围的）sand．

7．What is theconnection （连接，关系）between the two ideas？

5．standfor 代表．

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