新概念英语第四册多项选择题：Snakepoison
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新概念英语第四册多项选择题：Snake poison
Multiple choice questions 多项选择题
Choose the correct answers to the following questions.
Comprehension 理解
1，One of these statements is true.Which one?
a.Snakes need poison to digest their food.
b.Snakes can feed on other animals without the use of poison.
c.Non-poisonous snakes find survival more difficult than poisonous ones.
d.All snakes are capable of manufacturing poison.
2，The possession of poison in the saliva makes hunting ____.
a.easy for all carnivores
b.a two-edged weapon when carnivores fight each other
c.almost effortless for snakes
d.unpredictable, as Nature intended
3，The poison that acts on the blood ____.
a.acts less rapidly than nerve poison
b.doesn't affect the victim as badly as nervepoison
c.is made by snakes like mambas and cobras
d.was probably the first of the two kinds of poisonto be developed
4，Human beings ____.
a.can't compare with prey such as rats and mice
b.respond to all snake poisons in the same way
c.are likely to survive nerve poison but not blood poison
d.are not the intended victims of snake poison
Structure 句型
1，They ____ have been able to catch and live on prey without using poison.(1.3)
a.might
b.should
c.would
d.must
2，They could have caught and lived on prey without ____ poison.(1.3)
a.to use
b.use
c.the use of
d.have used
3，For ____ snakes, poison is merely a luxury.(1.4)
a.these
b.a
c.-
d.an
4，Blood poison is the more unpleasant ____.(1.15)
a.of them all
b.of the two
c.in the world
d.among them both
Vocabulary 词汇
1，Saliva is a natural ____.(11.1-2)
a.oil in the body
b.snake-poison
c.digestive process
d.body fluid
2，Poison would be ____ to all carnivores.(1.7)
a.an asset
b.a help
c.a necessity
d.a disadvantage
3，Arsenic and strychnine ____ us in different ways.(1.11.11-12)
a.effect
b.result
c.affect
d.cause
4，The nerve poison is thought to be ____(11.15-16)
a.less highly developed
b.more potent
c.more recent
d.less complicated
新概念英语第四册多项选择题：The stuff of dreams
Multiple choice questions 多项选择题
Choose the correct answers to the following questions.
Comprehension 理解
1，Giving the body a rest ____.
a.seems to be the main function of sleep
b.doesn't seem to be the main function of sleep
c.means that sleep must have some function
d.prevents muscle inactivity
2，Electrical activity ____.
a.is a good indication of the way the body rests during sleep
b.doesn't seem to diminish during sleep
c.is a plausible explanation for the function of sleep
d.must always be recorded during sleep
3，Rapid eye movements are an indication that
a.a person is having a disturbed sleep
b.sleep is very deep
c.that a sleeper is dreaming
d.that a person is drifting into sleep
4，One of these statements is true.Which one?
a.The most important function of sleep is dreaming.
b.Rapid eye-movement is associated with deep sleep.
c.People who experience rapid eye-movements show personality disorders.
d.When people are woken, they don't report any dreams.
Structure 句型
1，____ have speculations gone on? ____ Forthousands of years.(11.2-3)
a.How many
b.How often
c.How much
d.How long
2，The bodies tissues can repair ____ .
a.themselves
b.their self
c.itself
d.them
3，Peculiar bursts of eye-movements ____ an individual's sleep.(1.14)
a.punctuate
b.is punctuating
c.are punctuating
d.have punctuated
4，People woken during these periods of eye-movements generally reported that they had beendreaming ____.(11.15-16)
a.for a while
b.during sleep
c.before they went to sleep
d.just this moment
Vocabulary 词汇
1，Speculations have been going on for thousands of years ____.(11.2-3)
a.so to speak
b.in history
c.and recorded
d.in fact
2，This might be a plausible ____.(11.8-9)
a.conclusion
b.deduction
c.philosophy
d.theory
3，The second factor is more interesting and more ____.(1.13)
a.obvious
b.basic
c.apparent
d.acceptable
4，Some eye-movements were slow, others ____ and rapid.(1.15)
a.smooth, quick
b.interrupted
c.sudden, irregular
d.painful, repeated
新概念英语第四册多项选择题：Porpoises
Multiple choice questions多项选择题
Choose the correct answers to the following questions.
Comprehension理解
1，The writer of this piece probably ______.
a.doubts whether porpoises have a special relationship with humans
b.believes that porpoises have a special interest in humans
c.thinks that porpoises can't tell the difference between a human and a mattress
d.thinks that porpoises are attracted by humans as a possible meal
2，The stories we hear about porpoises suggest that porpoises ______.
a.take a special interest in us
b.are as intelligent as we are
c.always save humans who are drowning
d.always protect humans from sharks
3，Porpoises often give turtles a bad time because ______.
a.they are natural enemies
b.they like to play
c.turtles enjoy being badly treated
d.they often share an oceanarium
4，One of these statements is true.Which one?
a.Porpoises try to kill turtles by lifting their shells.
b.Porpoises never allow turtles to stand up.
c.Turtles seem to take part in this game played by porpoises.
d.Turtles don't feel any pain when they're ill-treated by porpoises.
Structure 句型
1，The superstition among mariners ______.(1.1)
a.was very common
b.has been very long
c.existed long ago
d.has lasted a long time
2，______ intelligent they may be, it is a mistake to...(1.3)
a.Regardless that
b.Whatever
c.No matter how
d.Whether
3，Whether it ______bird, fish or beast, the porpoise is intrigued ...(1.10)
a.were
b.has been
c.was
d.is
4，Hardly has the turtle recovered his equilibrium ______he is knocked down.(11.16-17)
a.but
b.though
c.when
d.than
Vocabulary 词汇
1，The of a possible meal attracted sharks.(1.8)
a.odour
b.perfume
c.smell
d.aroma
2，The porpoise is ______with anything that is alive.(1.10)
a.repelled
b.attracted
c.fascinated
d.puzzled
3，One young calf especially enjoyed ______a turtle to the surface.(11.11-12)
a.rising
b.lifting
c.arousing
d.elevating
4，The first porpoise ______down from above.(1.15)
a.dives
b.flies
c.jumps
d.falls
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