Why does the author mention a bell and a rattle in lines 4-5 ?
A.To contrast the reactions of babies to human and nonhuman sounds
B.To give examples of sounds that will cause a baby to cry
C.To explain how babies distinguish between different nonhuman sounds
D.To give examples of typical toys that babies do not like
A、three, five
B、four, six
C、three, four
D、five, six
Choose two of the following questions and give brief answers in English Give explanations of the symbolic meaning of “Pequod” in Moby-Dick by Melville. Discuss the allegory and symbolism in Moby-Dick. Analyze the characters in Melville’s works. What’s Herman Melville’s “black” vision of life and human beings? Why do you think Longfellow can earn such a great popularity in the readers of the 19thcentury? Summarize Longfellow’s typical poetic features in your own words. Exemplify the optimistic feeling expressing in Longfellow’s poems.
Why does the professor say this:
A.To illustrate the unreasonable demands of the typical consumer
B.To compare consumers in North America with those in other places
C.To give examples of common agricultural products in North America
D.To explain why agricultural marketing technology is necessary
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 ).
C: Good morning. Would you show me some typical Chinese souvenirs? I’d like
to buy a gift for my wife.
S: We've got plenty of silk scarves and silk dresses for you to choose from.
C: The dress is very nice.()?
S: Fifty-five US dollars.
C: It's a little more than I expected.()?
S: I'd like to, but I'm afraid I can't. You see, it's already 5% off the regular price.
C: Then().
S: Well, let me ask the manager if it's all right... I'm sorry to have kept you
waiting. The best we can do is to give you a 10% discount.
C: OK.().
A.I'm afraid I can't afford it
B. I'll take it
C.How much is it
D. Can I help you?
E. Could you give me a discount
A.plays written for Restoration audiences do not appeal to modern audiences.
B.plays are superior to novels as a form. of narrative art.
C.Restoration audiences were representative of the whole population of their time.
D.playgoers and novel readers are typically distinct and exclusive groups.
E.Restoration drama achieved popular success at the expense of critical success.
Text 3
Under certain circumstances, the human body must cope with gases at greater-than-normal atmospheric pressure. For example, gas pressures increase rapidly during a dive made with scuba gear because the breathing equipment allows divers to stay underwater longer and dive deeper.
The pressure exerted on the human body increases by 1 atmosphere for every 10 meters of depth in seawater, so that at 30 meters in seawater a diver is exposed to a pressure of about 4 atmospheres. The pressure of the gases being breathed must equal the external pressure applied to the body, otherwise breathing is very difficult. Therefore all of the gases in the air breathed by a scuba diver at 40 meters are present at five times their usual pressure. Nitrogen, which composes 80 per cent of the air we breathe, usually causes a balmy feeling of well-being at this pressure. At a depth of 5 atmospheres, nitrogen causes symptoms resembling alcohol intoxication, known as nitrogen narcosis. Nitrogen narcosis apparently results from a direct effect on the brain of the large amounts of nitrogen cause under these pressurized helium does not exert a similar narcotic effect.
As a scuba diver descends, the pressure of nitrogen in the lungs increases. Nitrogen then diffuses from the lungs to the blood, and from the blood to body tissues. The reverse occurs when the diver surfaces; the nitrogen pressure in the lungs falls and the nitrogen diffuses from the tissues into the blood, and from the blood into the lungs. If the return to the surface is too rapid, nitrogen in the tissues and blood cannot diffuse out rapidly enough and nitrogen bubbles are formed. They can cause severe pains, particularly around the joints.
Another complication may result if the breath is held during ascent. During ascent from a depth of 10 meters, the volume of air in the lungs will double because the air pressure at the surface is only half of what it was at 10 meters. This change in volume may cause the lungs to distend and even rupture. This condition is called air embolism. To avoid this event, a diver must ascend slowly, never at a rate exceeding the rise of the exhaled air bubbles, and must exhale during as- cent.
31. What does the passage mainly discuss?
A) The equipment divers use.
B) The effects of pressure on gases in the human body.
C) How to prepare for a deep dive.
D) The symptoms of nitrogen bubbles in the bloodstream.
听力原文:A: Look, it's already 8 o'clock, and Tom said he'd be here by 7.
B: Yes, but you know what the traffic is like at this time of the day.
A: He said he'd make a special effort not to be late. Why does he always do this?
B. Take it easy. There's probably a reasonable explanation.
A. You mean he'll give us one of his typical excuses? Well, I've had enough of it already.
Q: How does the woman feel about Tom's being late?
(5)
A.Excited.
B.Annoyed.
C.Worried.
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