The idea of a fish being able to generate electricity strong enough to light lamp bulbs--or even to run a small electric motor--is almost unbelievable, but several kinds of fish are able to do this. Even more strangely, this curious power has been acquired in different ways by fish belonging to very different families. Perhaps the best known are the electric rays, or torpedoes(电鳐), of which several kinds live in warm seas. They possess on each side of the head, behind the eyes, a large organ consisting of a number of hexagonal shaped cells rather like a honeycomb. The cells are filled with a jelly-like substance, and contain a series of flat electric plates. One side, the negative side, of each plate, is supplied with very fine nerves, connected with a main nerve coming from a special part of the brain. Current passes from the upper, positive side of the organ downwards, to the negative, lower side. Generally it is necessary to touch the fish in two places, completing the circuit, in order to receive a shock. The strength of this shock depends on the size of the fish, but newly born ones only about 5 centime-tres across can be made to light the bulb of a pocket flashlight for a few moments, while a fully grown torpedo gives a shock capable of knocking a man down, and, if suitable wires are connected, will operate a small electric motor for several minutes. Another famous example is the electric eel. This fish gives an even more powerful shock. The system is different from that of the torpedo in that the electric plates run longitudinally(纵向) and are supplied with nerves from the spinal(脊骨) cord. Consequently, the current passes along the fish from head to tail. The electric organs of these fish are really altered muscles and like all muscles are apt (likely) to tire, so they are not able to produce electricity for very long. The power of producing electricity may serve these fish both for defence and attack.It can be seen from the passage that（）.

第1题

Babies love chocolate and sometimes they also eat the paper around it.My cat enjoys a

meal of good，thick paper，old letters, for example.She doesn't like newspapers very much.

Of course，the best paper comes from wood.Wood comes from trees，and trees are plants.Vegetables and fruit and plants too，and we eat a lot of them.So can we also eat wood and paper？

Scientists say，"All food comes in some way from plants." Well，is that true？ Animals eat grass and grow fat.Then we eat their meat.Little fish eat little sea-plants; then bigger fish swim along and eat the...Chickens eat bits of grass and give us...Think for a minute.What food does not come from plants in some way？

Scientists can do wonderful things with plants.They can make food just like meat and cheese.And they can make it without the help of animals.It is very good food too.Now they have begun to say，"We make our paper from wood.We can also make food from wood.The next thing is not very difficult." What is the next thing？ Perhaps it is-food from paper.Scientists say，"We can turn paper into food.It will be good，cheap food too; cheaper than meat or fish or eggs."

So please keep your old books and letters.Don't feed them to your cat.) One day，soon，they will be on your plate.There is nothing like a good story for breakfast.

1、The best paper come from Wood.()

2、From the passage，we can infer 推断) thatfew kinds of food do not come from plants in some way.()

3、The main idea of the passage is all food comes from plants in some way.()

4、The writer asks us to keep our old books and letters because we can make food from them soon.()

5、The best title for the passage is " Food from Plants ".()

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第2题

"In every known human society the male's needs for achievement can be recognized... In a g

reat number if human societies men's sureness of their sex role is tied up with their right, or ability, to practice some activity that women are not allowed to practice. Their maleness in fact has to be underwritten by preventing women from entering some field or performing some feat."

This is the conclusion of the anthropologist Margaret Mead about the way in which the roles of men and women in society should be distinguished.

If talk and print are considered it would seem that the formal emancipation of women is far from complete. There is a flow of publications about the continuing domestic bondage of women and about the complicated system of defences which men have thrown up around their hitherto accepted advantages, taking sometimes the obvious form. of exclusion form. types of occupation and sociable groupings; and sometimes the more subtle form. of automatic doubt of the seriousness of women's pretensions to the level of intellect and resolution that men, it is supposed, bring to the business of running the world.

There are a good many objective pieces of evidence for the erosion of men's status. In the first place, there is the widespread postwar phenomenon of the women Prime Minister, in India, Sri Lanka and Israel.

Secondly, there is the very large increase in the number of women who work, especially married women and mothers of children. More diffusely there ate the increasingly numerous convergences between male and female behaviour: the approximation to identical styles in dress and coiffure, the sharing if domestic tasks, and the admission of women to all sorts of hitherto exclusively male leisure-time activities.

Everyone carries round with him a fairly definite idea of the primitive or natural conditions of human life. It is acquired more by the study of humorous cartoons than of archaeology, but that does not matter since it is not significant as theory but only as an expression of inwardly felt expectations of people's sense of what is fundamentally proper in the differentiation between the roles of the two sexes. In this rudimentary natural society men go out to hunt and fish and to fight off the tribe next door while women keep the fire going. Amorous initiative is firmly reserved to the man, who sets about courtship with a club.

The phrase "men's sureness of their sex role" in the second line, first paragraph suggests that they ______.

A．are confident in their ability to charm women

B．take the initiative in courtship

C．have a clear idea of what is considered "manly"

D．tend to be more immoral than women are

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第3题

The majority of people in this country eat too much fat and not enough fibre （纤维) and

The majority of people in this country eat too much fat and not enough fibre (纤维) and for most people having a healthy diet is simple and easy to do. The move towards a healthy diet may just mean eating more fruit, vegetables, bread and potatoes.

There are 5 basic food groups and a healthy diet consists of eating a variety of foods from each of the groups.

1. Bread, potatoes, rice, noodles,and breakfast cereals.

These foods mostly contain starch (淀粉) and should be the main part of all your meals. If possible try to choose high fibre varieties. This group of foods is an excellent source (来源) fibre and is rich in vitamin (维生素)

2. Fruit and vegetables

This includes all frozen, fresh and canned fruit/vegetables as well as salad vegetables. These are all excellent sources of vitamins minerals and fibre and are naturally low in fat and calories.

3. Milk and dairy foods

Milk and dairy products include cheese, yoghurt and milk. They are rich in protein (蛋白质) calcium, vitamin and minerals.

4. Meat, fish and poultry (家禽)

Eating fish 1-2 times a week is good for you. All types of meats are included in the category and red meat is excellent source of iron and vitamin B12. Nuts, peas and beans are also in this food group.

5. Foods containing fats and sugars.

This last group contains butter, cream, ice cream, cooking oil, cakes, biscuits, chocolate, sugary drinks, sweets and crisps. All of these foods tend to be high in fat and calories.Try not to eat these foods too often and when you do, only have them in small amounts.

(1)、What’s the problem with many people？

A、Not enough sleep

B、Staying up late

C、Eating too much fat and not enough fibre

D、Under stress

(2)、What does a healthy diet mean？ It means （）.

A、five different kinds of foods a meal

B、different kinds of foods from the 5 basic food groups

C、different kinds of fruits and vegetables

D、less fruit, vegetables, bread and potatoes

(3)、We should try not to eat foods from （） too often.

A、Group 5

B、Group 4

C、Group 1

D、Both Group 4 and Group 5

(4)、Which of following sentence is NOT true？

A、Nuts and meat are in the same group.

B、Milk and dairy products are rich in protein.

C、Bread and milk are in the same group.

D、Cakes and chocolate tend to be high in fat and calories.

(5)、What’s the main idea of the passage？

A、What should a healthy diet consist of ？

B、How can we tell the differences from 5 basic food groups？

C、A healthy diet is simple and easy to do.

D、Vitamin is not a part of staying healthy.

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第4题

荧光原位杂交(FISH)与免疫组化()的根本区别是()FISH是用来检测。

A.蛋白质

B.脂类

C.核酸

D.多糖

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第5题

She is shy and as mute as （）in class.

A.fish

B.wood

C.air

D.water

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第6题

"a cold fish" refers to a person who is （）.

A.cool-minded

B.cold-blooded

C.unfriendly

D.passionate

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第7题

Which of the following is a signature dish of Cantonese Cuisine？

A、Steamed Fish Head with Chopped Hot Chili

B、Fish-flavored Shredded Pork

C、Steamed Sea Bass

D、West Lake Vinegar Fish

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第8题

皮质旁骨肉瘤可以通过FISH检测以下哪个异常基因辅助诊断（)

A.MDM2

B.EGFR

C.Her-2

D.ALK

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第9题

—Do you have any fresh fish today？—（).

A.Yes，I have some

B.Yes，I have many

C.No，I still have a few

D.No，I still have a little

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第10题

The Hongshan culture sites in present－day Inner Mongolia produced jade dragon objects in the form. of ___ dragons which are the first 3－dimensional representations of Chinese dragons.

A.dog

B.pig

C.fish

D.snake

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第11题

以下哪些患者符合方案的病理检测确诊为HR+、HER2-？（）

A.ER+70%，PR+50%，HER21+

B.ER+5%，PR+5%，HER21+

C.ER+50%，PR+5%，HER21+

D.ER+60%，PR+40%，HER22+，FISH结果有扩增

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