问答题You are trying to fill a bath with both taps on, but have accidentally left out the plug. Normally the hot water tap takes 8 minutes to fill the bath and the cold water tap takes 10 minutes. However, the water empties out through the plug hole in 5 min

题目
问答题
You are trying to fill a bath with both taps on, but have accidentally left out the plug. Normally the hot water tap takes 8 minutes to fill the bath and the cold water tap takes 10 minutes. However, the water empties out through the plug hole in 5 minutes. How long will it take for the bath to fill?
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第1题:

Once a week my aunt would announce, "I am going to have my bath today."

Now most people find it fairly simple to have a bath.You probably remember how it goes.You enter the bathroom, you put the plug in, turn on the hot water, get into the bath, wash, sing, get out, dry yourself and exit.My aunt's approach was more epic(宏大的), like one of those long Eisenstein films where people seem to be climbing up the same flight of stairs forever.

My aunt would first slowly collect her clean linen(亚麻布衬衫), so as to have it all ready for changing into after her bath.This involved sorting out her linen, which took up most of the morning.Sometimes she would find an old letter buried among her linen, become interested in the memories it aroused and have to postpone the bath until the next day.But if all went well, she would have a bite of lunch and start Phase Two around two o'clock.

Phase Two was washing out the bath.She would wash the bath very thoroughly, rinse(冲洗) it with running cold water, rewash it and then carefully feel the whole surface with her fingers.If there was the slightest blemish, she would clean the whole bath out again.This took about an hour.Then she would fill the bath.

By this time she was feeling a bit hungry and exhausted.So she would put on the kettle for a cup of tea.Several cups of tea and several cream crackers (her favourite food) later, she would go back to the bathroom.And find the water stone cold.

1.According to the writer, most people().

A.read magazines in the bath

B.make bath time a special occasion

C.sing when they are in the bath

D.have a bath once every other week

2.The writer's aunt().

A.never got used to taking a bath regularly

B.always treated bathtime as an event

C.hated climbing the stairs to the bathroom

D.would collect her new linen quickly

3.How did she use to spend most of the morning?()

A.Reading old letters.

B.Preparing lunch.

C.Getting the bath water hot.

D.Sorting out her linen.

4.Why might the writer's aunt put off bathing until the next day?()

A.She might get fascinated by an old letter.

B.She would sometimes get too tired.

C.She would sometimes have lunch instead.

D.She might start ironing the linen.

5.She would never fill the bath until she().

A.had cleaned it at least three times

B.had had several cups of tea

C.had polished it inside and outside

D.had made sure it was perfectly clean


参考答案:CBDAD

第2题:

when the anchor is heaved out of water and just above it, what do you report?


正确答案:The anchor is out of water.

第3题:

A) 信息归纳(共5小题,每小题1分)

阅读下面短文,完成信息卡:

Skin-diving is a new sport today. This sport takes you into a wonderful new world. It is like a visit to the moon. When you are under water, it is easy for you to climb big rocks, because you are no longer heavy.

Here, under water, everything is blue and green. During the day, there is plenty of light. When fish swim nearby, you can catch them with your hands.

When you have tanks of air on your back, you can stay in deep water for a long time. But you must be careful when you dive in deep water.

To catch fish is one of the most interesting parts of this sport. Besides, there are more uses for skin-diving. You can clean ships without taking them out of water. You can get many things from the deep sea.

Now you see that skin-diving is both useful and interesting.

In formation Card

A new sport today

81.___________


正确答案:

Skin-diving

第4题:

共用题干
Some doctors think that you should drink a glass of water each morning. You should drink water before doing anything else.The temperature of the water should be similar to body temperature:not hot,not cold.Why should you drink this water?______(46).It helps clean out your kidneys.It prepares your stomach for digestion.______(47).After drinking water,the intestines can more easily take out nutrients from our food. And water helps us go to the bathroom more easily.
Scientists suggest that people take in 1,600 milliliters of water each day.______(48).If you do,your kidneys will have to work much harder to eliminate it. It's better to drink some in morning and some in afternoon.______(49).And during meals,they think water dilutes the juices produced in our stomachs.This can interfere with normal digestion.
Are you drinking enough water every day?Check the color of your urine.______(50).if your urine is very dark yellow,your probably need to drink more water. A little water each day could make you much healthier.

_________(47)
A:If it is light yellow,you are probably drinking enough
B:Water can also help your intestines work better
C:Some people think it's better to drink between meals
D:Water helps your body in many ways
E:But don't drink all of that water in one sitting
F: Water is an essential element of life

答案:B
解析:
本题考查的是对上下文之间意义关系的理解和对文章细节的把握。空格上一句问:“为什么要喝水呢?”而空格的下一句具体说明了喝水对人体有各种益处。因此这里应该是概括提出喝水有益健康,D与上下文联系最好。
本题考查的是对上下文之间意义关系的理解和对文章细节的把握。空格的下一句是“饮水后,肠道能够更容易地从食物中吸取营养物质,也能让排泄更容易”,因此这里表述的应该是有关饮水与肠道的影响。
本题考查的是对上下文之间意义关系的理解和对文章细节的把握。上一句说到“科学家建议每人一天应喝1 600毫升的水”,而空格后内容是“否则你的肾脏在处理这些水的时候会比较困难”,因此选项E与前后内容最符合。
本题考查的是对上下文之间意义关系的理解和对文章细节的把握。空格后内容是“他们认为在吃饭的时候喝水会稀释胃液,可能干扰消化”。因此选项C与内容最符合。
本题考查的是对上下文之间意义关系的理解和对文章细节的把握。上一句说到“检查一下你尿液的颜色”,而空格后的内容是“如果是暗黄色,你可能需要多喝水”,因此选项A最合适。

第5题:

Which statement about damage control is TRUE ________.

A.A hole in the hull at the waterline is more dangerous than a hole below the inner bottom

B.The amount of water entering a ship through a hole varies inversely to the area of the hole

C.Water flowing into a lower compartment on a ship is more dangerous than water on deck or flowing into an upper compartment

D.Water flowing over the forecastle bulwark is more dangerous than a hole in the hull at the waterline


正确答案:A

第6题:

When sailing ill cold zones,_______should be drained of water.

A.the ventilation pipe

B.the water line for fire fighting on the deck

C.the fuel oil line

D.the water supplying line in bath room


正确答案:B

第7题:

Which of the following would be considered downflooding on a fishing vessel as defined in regulation?

A.Vessel heels until water enters a hatch

B.Vessel in collision floods through a damaged area above the waterline

C.Vessel takes on water due to the hatches being left open in heavy rain

D.Vessel takes on water by the propeller shaft due to failure of the stern gland


正确答案:A

第8题:

Passage Four

Archimedes was a famous Greek mathematician and scientist. He was born around 287 BC and he died in the year 212 BC.

Archimedes is most well-known for one specific idea that he came up with. "Archimedes's Principle" states that a solid object which is immersed in a liquid is pushed up by a force which is equal to the weight of the water that the object moves. For example, if you put a piece of wood and a piece of gold the same size in water, only the wood will float. Both the wood and gold move the same amount of water, but the wood weighs less than this water, while the gold weighs more.

It is believed that Archimedes discovered this principle when the king of Syracuse asked him to solve a problem. The king wanted to know if his crown was pure gold or a mixture of gold and silver. The king, of course, did not melt his crown to find out. The idea came to Archimedes as he lowered himself into his bath. He noticed how the water spilled out of the tub. He decided to use the same idea for the crown. He knew that a gold crown immersed in water would weigh more than one made of silver. The experiment was done and the goldsmith was proved guilty of trying to cheat the king.

48. A good title for the selection is______.

A. Archimedes

B. Archimedes's Principle

C. A Gold and Silver Crown

D. The King of Syracuse


正确答案:B
48.答案为B  此题为主旨题。综合全文,本文的最佳题目为“阿基米德定理”,即放入水中的物体排开水的重力等于它所受到的浮力。

第9题:

请阅读短文,完成此题。
When we analyze the salt salinity(盐溶度 ) of ocean waters, we find that it varies only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation. In this manner, the salinity is increased, since the salt stays behind. If this is carried to the extreme, of course, white salt would be left behind; this, by the way, is how much of the table salt we use is actually obtained.
The opposite of evaporation is precipitation, such as rain, by which water is added to the ocean. Here the ocean is being diluted so that the salinity is decreased. This may occur in areas of
high rainfall or in coastal regions where rivers flow into the ocean. Thus salinity may be increased by the subtraction of water by-evaporation, or decreased by the addition of fresh water by precipitation.
Normally, in hot regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation. Similarly, in coastal regions where rivers dilute the sea, salinity is somewhat lower than in other oceanic areas.
A third process by which salinity may be altered is associated with the formation and melting of sea ice. When seawater is frozen, the dissolved materials are left behind. In this manner, seawater directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared. Of course, when this ice melts, it will tend to decrease the salinity of the surrounding water.
In the Weddell Sea, the densest water in the ocean is formed as a result of this freezing process, which increases the salinity of cold water. This heavy water sinks and is found in the deeper portion of the oceans of the world.

The purpose of mentioning the Weddell Sea is__________.
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A.to give an example of cold-water salinity
B.to point out the location of deep waters
C.to make a comparison between hot-water salinity and cold-water salinity
D.to show that the water in the Weddell Sea varies in salinity from place to place

答案:A
解析:
根据“IntheWeddell Sea,the densestwaterinthe oceanisformed as a result ofthisfreezing process,which inereases the salinity of cold Water."可知。威尔德海是作为例子说明冰冻过程引起的盐度变化,答案为A。

第10题:

The purpose of mentioning the Weddell Sea is___________.

A.to give an example of cold-water salinity
B.to point out the location of deep waters
C.to make a comparison between hot-water salinity and cold-water salinity
D.to show that the water in the Weddell Sea varies in salinity from place to place

答案:A
解析:
根据“In the Weddell Sea,the densest water in the ocean is formed as a resuit ofthis freez.ing process,which increases the salinity of cold water.”可知,Weddell Sea是作为一个例子,说明this freezing pro—cess引起盐度变化,答案为A。

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