Dolphins are very smart creatures. They learn very quickly, _______ 1) is why they, out of all sea animals, are used most often in movies and television. They can be very helpful and have helped humans in trouble without _________ 2). A dolphin can sense danger and will know _______ 3) something is not right. Often times dolphins have helped to save people in swimming accidents and such. They are very curious animals. Their _________ 4) can sometimes get them in trouble. Such cases would be getting too close to a fisherman’s net and _________ 5) tangled up within it. Along with being curious, dolphins love to play. They love humans in the respect that they love to play with the balls they might have or simply swim around with humans.
1.
A、that
B、which
C、who
D、it
2.
A、thoughts
B、reasons
C、hesitation
D、difficulty
3.
A、while
B、as
C、that
D、when
4.
A、curiosity
B、smartness
C、intelligence
D、actions
5.
A、get
B、getting
C、to get
D、got
第1题:
A.at
B.on
C.to
D.in
第2题:
A.very quickly
B.far quickly
C.much quickly
D.much more quickly
第3题:
Discharging can be completed in no time.
A.without time
B.very soon
C.in any time
D.during day time
第4题:
第5题:
第6题:
第7题:
survive
starve
relieve
routine
第8题:
第9题:
are bound into three pairs
are able to sense fantastically small disturbances
keep the satellite stable and prevent it from falling out of the sky
contain some very fragile mechanisms
第10题:
all the American children have used the latest technology in schools
computers and the Internet are very popular with Americans
Americans tend to place more importance in the Internet usage than computers
the public in America do not hate the Internet problems
第11题:
is used to be
was used to be
used to be
was used to
第12题:
Refined sugar alone can be a diet for people to live on for a few days
Sugar can cause diabetes, cancer and heart diseases
Unrefined sugar was once good and very cheap if used to feed and fatten livestock
Sugar cannot be used as a daily diet
第13题:
The sea looks very pretty when the sun is shining on it. It can be very rough when there is a strong wind. The sea is very big. It covers three quarters of the globe! The sea is also very deep in some places. There is one spot near the Philippines , where the sea is about 11 kilometers deep. The highest mountain in the world is about 9 kilometers high. If that mountain was put in the sea at that place, there would still be 3 kilometers of water above it! What a deep place! In most parts of the sea, there are plenty of fishes and plants. Some live near the top of the sea. Others live deep down. There are millions of tiny living things that float in the sea. Many fish live by eating them. The sea can be very cold. When the diver goes downwards, the sea becomes colder and colder. When the diver goes deeper, the water exerts greater pressure.
1、There is one spot near the Philippines, where the sea is as deep as ( ).
A、13 kilometers
B、 9 kilometers
C、 2 kilometers
D、 11 kilometers
2、There are millions of tiny living things that float in the sea, and( ).
A、they live by eating fish
B、they live by eating plants
C、they are good food for many fish
D、they live by eating worms
3、Which of the following statements is true? ( )
A、When the diver dives under the sea, he gets colder and colder.
B、When the diver sinks to the bottom, he is to be colder and colder.
C、When the diver sinks in the sea, he will be rather cold.
D、When the diver dives downward, the sea gets colder and colder.
4、From the information given, why has the diver to wear a diving suit? ( )
A、Because the diver is likely to be attacked by fish.
B、 Because the water at great depths is very cold.
C、 Because the salt water seems unsuitable for diver.
D、 Because the pressure of water at great depths is immense ( 巨大的 ).
第14题:
From the first paragraph we can learn that ______.
A) very few people have the sensitivity of the blind'
B) blind people can manage to see things, but not clearly
C) not everybody sees with his eyes
D) it is possible to narrow the photosensitive areas of the body
第15题:
Foam is a very effective smothering agent and ______.
A.it provides cooling as a secondary effect
B.works well on extinguishing electrical fires
C.can be used to combat combustible metal fires
D.All of the above
第16题:
第17题:
第18题:
sense
view
means
idea
第19题:
will try to keep as many as it can.
will try to keep as low as it can.
will try to make them all by itself.
will try to deliver it quickly.
第20题:
not be changed
be changed
should not be changed
should be changed
第21题:
we can have a troubled journey
we have enough money to fly in planes
we can now travel by superfast trains
we can travel by motorcars as well
第22题:
第23题:
in addition
in consequence
in advance
in short