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单选题Which of the following statements is true?A Scientists have solved the mystery about the fish killer.B More studies need to be made about the fish killer.C It is proved that the algae are reducing fish populations.D Humans have already been affected by

题目
单选题
Which of the following statements is true?
A

Scientists have solved the mystery about the fish killer.

B

More studies need to be made about the fish killer.

C

It is proved that the algae are reducing fish populations.

D

Humans have already been affected by the toxin.

参考答案和解析
正确答案： C
解析：
推断题。从第五段提到的“To understand the killer algae further, scientists must…and determine….They also need to know….”，可知要对这种微生物有进一步的了解，还有更多的研究工作要做。因此选B。
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相似问题和答案

第1题：

Today a neighbor brought us some fresh fish he had caught on his last boat trip. As thanked him，he said,‘They are not from me; they only come through me.’

At that moment I noticed the similarity between fish and haiku.

Nowadays, if Mom doesn't ever serve fish for dinner at least the kids get a taste of

haiku at school.

For most of us，our first introduction comes from reading translations from Japanese,

which is a bit like comparing sushi to frozen fish sticks. Even with the knowledge of the

exotic, most poets stick to the meat and potatoes of English literature. It often isn’t until we get older that we accept the simple goodness of fish，adding them to the menu more often.

Having acquired a taste for fish and learned how to cook them, one is better able to

appreciate the short form. of haiku. Like fishing, haiku writing can be done with minimal

equipment. A pin or a pen，and a scrap of paper, is enough，but it is tempting to go all out and buy a rod and reel (even study Zen，visit a monastery or take a trip to Japan).

If one goes in for deep sea fishing,a computer and laser printer are soon on the list of 'must haves'.

Like fishing, to catch haiku you have to go where they are. Unlike fish, haiku are

everywhere. Still，you have to know the secret places where they hide and how to get there.

Wearing old comfortable clothes(usually thought of as a meditative state) we look around

just where we are. It does little good to only read of fishing off the coast of Japan when

sitting beside the lake by our own front door. It does help to know which fish are edible and which are not. There are two ways of finding this out. We can either eat everything we catch and publish what feels right, or we can read books containing others’experiences while making up our minds about what kind of fish to go for.

If we compare spending days on rough seas to fish or strolling on the beach writing

haiku; it is very easy for me to decide where my interest lies. Still I do love a fish dinner and I hope my neighbor enjoys my latest poems.

(1). The similarity between fishing and writing haiku the text does NOT mention is

A. the freedom to choose what we do with the product of each activity

B. the delayed appreciation of both activities

C. the thrill experienced when engaging in them

D. the limited resources required for practising them

(2). In paragraph 2，the author refers to sushi_.

A. to point out that the American eat frozen fish sticks more often

B. to contrast it with meat and potatoes

C. to give an example of an exotic dish

D. as a metaphor for original Japanese texts

(3). According to the author, haiku writers have to_·

A. read about the process of haiku writing

B. be observant of what is around them

C. try to have their poems published

D. get acquainted with Zen philosophy

(4). The best title of this text would be_·

A. Something fishy about haiku

B. The forgotten skill of fishing

C. Writing haiku is easy

D. The art of writing haiku

(5). The author's attitude towards haiku is_.

A. positive

B. neutral

C. indifferent

D. negative


参考答案C D B D A

第2题：

Which of the following statements can best be inferred from the passage?

A. Fishes only "speak" to communicate with each other.

B. Researches are now being made to study the significance of fish sounds.

C. Sea animals have a sharper hearing ability than men.

D. Sounds made by fish cannot be transmitted through the air.


正确答案：B
答案为 B。根据第一段第二至第五句， Actually， their talk may be as meaningful as much of our own．For example，some sea animals use their  "voices" to locate their food in the ocean expanses；others use their "voices" to let their fellows know of their locations；and still others，as a means of obtaining mates．Sometimes, "speaking" may even mean the difference between life and death to a sea animal．It appears in some cases that when a predator approaches，the prey depends on no more than the sounds it makes to escape 作出该项选择。选项 A中only不确切；选择 C和D在文中都没提到。

第3题：

Passage Five

The Northern Pike is a very bad fish. It is a big, hungry fish, and swallows little fish such as trout and perch. Many Northern Pikes live in Lake Davis. They are killing all the smaller fish in the lake. The Northern Pike are a serious threat to the lake because they eat all the smaller fish. Soon, all other species of fish in the lake will be killed off. This is not healthy for the environment.

Experts are afraid that the Northern Pike will swim out of Lake Davis through many smaller rivers that feed into the lake. They could spread all over the country and damage many other water environments. If that happens, it would be too late to stop the Northern Pike.

For ten years, officials have been trying to remove the Northern Pike from Lake Davis. They haw. tried using nets, explosives and poisons. However, the Northern Pike population is still doing well in Lake Davis. Many people do not like the idea of using poison to kill the fish. They worry that the poi- sons are bad for humans who use the water. No trace of the poisons has ever been found in local wells, however.

Scientists are going to try the poison again. This time, they will drain the lake before they add the poison to the water. A public hearing will be held to talk about the problem.

52. Why are some people against the use of poisons to kill Northern Pike?

A. Fishermen will be poisoned too.

B. The poisons are expensive.

C. They think that wells will be polluted.

D. The lake will become unsafe.


正确答案：C
52．第三段。人们担心湖水里放毒药会殃及人的用水。选项 C是正确的。

第4题：

共用题干
Lakes,Too,Feel Global Warming

There's no doubt:In the last few decades,the average temperature on Earth has been higher than it has
been in hundreds of years.Around the world,people are starting to measure the effects of global warming一
and trying to figure out what to do about it.
Scientists recently used satellites to study the temperatures of lakes around the world,and they found
that lakes are heating up.Between 1985 and 2009,satellites recorded the nighttime temperatures of the sur-
faces of 167 lakes.During those 24 years,the lakes got warmer by an average of about 0.045 degree
Celsius per year.
In some places,lakes have been warming by as much as 0.10 degree Celsius per year. At that rate,a
lake may warm by a full degree Celsius in just 10 years.That difference may seem small一you might not
even notice it in your bath.But in a lake,slightly warmer temperatures could mean more algae（水藻）,and
algae can make the lake poisonous to fish.
The study shows that in some regions,lakes are warming faster than the air around them.This is impor-
tant because scientists often use measurements of air temperature to study how Earth is warming. By using
lake temperatures as well,scientists can get a better picture of global warming. The scientists say data on
lakes give scientists a new way to measure the impact of climate change around the world.
That's going to be useful,since no country is too big or too small to ignore climate change.Scientists
aren't the only ones concerned.Everyone who lives on Earth is going to be affected by the rapid warming of
the planet. Many world leaders believe we might be able to do something about it,especially by reducing the
amount of greenhouse（温室）gases we put into the air.
That's why the United Nations started the Framework Convention on Climate Change,or UNFCCC.
Every year the convention meets,and representatives from countries around the world gather to talk about
climate change and discuss global solutions to the challenges of a warming world.

A slight temperature increase in a lake could be harmful to fish.
A:Right
B:Wrong
C:Not mentioned

答案：A
解析：
由第二段可知，科学家从1985年开始记录湖水温度的，到现在还不到30年。
由第二段最后一句话可知，此判断正确。
湖水在亚洲温暖的快在文中没有信息依据。
由第三段最后一句话可知，此判断正确。
由第四段第二句话可知，科学家经常用空气温度来研究地球变暖的问题，说明他们关 注的主要焦点在于空气温度。
由第五段的内容可知，地球上的任何人都应关心全球变暖的问题。
在文中没有提及今年的UNFCCC在哪举行。第3部分：概括大意与完成句子

第5题：

What is the text mainly about?

A． Fish dieting and human dieting.

B． Dieting and health.

C． Human dieting.

D． Fish dieting.


正确答案：D

第6题：

Great quantities of fish ______ in the river in the past few days.

A. is caught

B. are caught

C. has been caught

D. have been caught


正确答案： D

第7题：

Which of the following statements about older adults is TRUE?（ ）

[A] They have to find an identity again.

[B] They.will retire in several months.

[C] Their bodies become immortal.

[D] Their children have left home.


正确答案：A

第8题：

The sharp hearing of a fish _______ by two scientists.

A.have been proved

B.have proved

C.has proved

D.has been proved


正确答案:D

第9题：

Which of the following statements about language is NOT true?

A.Language is a system
B.Language is symbol
C.Animals also have language
D.Language is arbitrary

答案：C
解析：
本题考查语言的定义。
本题要求选不正确的，C选项，动物也有语言，错误。语言是人类在交际中使用的一套任意的声音符号系统。动物没有语言，动物只是本能发出声音。综上，应选C。
A选项，系统的，故排除。
B选项，符号，故排除。
D选项，任意的，故排除。
故正确答案为C项。

第10题：

Text 3 It is a good time to be a fisherman.The global fish-price index of the UN's Food and Agricultural Organization（FAO）hit a record high in May.Changing consumer diets,particularly in China,explain much of the sustained upward movement.High oil prices,which increase the cost of fishing and transportation,also add to the price of putting fish on Lhe table.Not all fish are creaLed equal,however.There are two types of fish production:"capture"（or wild）and"aquaculture"（or farmed）.And they seem to be on different tracks.Fish such as tuna,the majority of which is cau~;ht wild,saw much bigger price increases than salmon,which is easier to farm.Overall,the FAO's price index for wild fish nearly doubled between 1990 and 2012,whereas the one for farmed fish rose by only a fifth.What explains this big difference?The amount of wild fish captured globally has barely changed in the past two decades.The ceiling,of about 90m tonnes a year,seems to have been reached at the end of the 1980s.Overfishing is one reason,as is the limited room for produclivity growth,particularly if consumers want high quality.Patrice Guillotreau of the University of Nantes tells the story of a fleet in France that decided to trawl,rather than line-catch,its tuna.It braughi more back to shore,but the fish were damaged.It could not be sold as high-value fillets and was only good for canning.The old ways of catching fish are still best if you want the highest profits,says Mr CuiUotreau.In contrast,the farmed-fish industry continues to make productivity improvements.Fish farms have found crafty ways to use lower quantities of fish meal as feed.In the early days of aquaculture,it could take up to ten pounds of wild fish to produce one pound of salmon.Now the number is down to five.That may still be an inefficient use of protein,but the ratio is set to improve further.Fish farms have also become more energy-efficient,meaning that they are less affected by higher energy pnces.And they have learned how to handle diseases beUer,reducing the quanlity of fish that ends up being unsellable.As a resuli of all these improvements,the global production of farmed fish,measured in tonnes,now exceeds the producUon of beef.Output is likely to continue growing:the FAO estimates thal by 2020 it will reach six times its I990 level.
Tuna and salmon are mentioned to show that______

A.salmon is not as expensive as tuna
B.tuna is more popular among consumers
C.wild fish is more precious than farmed fish
D.the prices of fish are in fact decided by FAO

答案：C
解析：
例证题。根据tuna and salmon定位到第二段第四句。答案句来自下一句：Overall．the FAO's price index for wild fish nearly doubled between 1990 and 2012,whereas the one for farmed fish rose by only a fifth.文章举金枪鱼和三文鱼的例子，是为了说明野生鱼的价格涨幅大，而养殖鱼的价格相对涨幅小，即野生鱼比养殖鱼更珍贵，选项[C]wild fish is more precious than farmed fish“野生鱼比养殖鱼更珍贵”为答案。选项[A]salmon is not as expensive as tuna“三文鱼不如金枪鱼贵”“B]tuna is more popular among consumers“金枪鱼更受消费者欢迎”；这两项围绕salmon和tuna讨论，明显是表面选项，故可以排除。选项[D】the prices of fish are in fact decided by FAO“鱼类价格实际上由联合国粮食与农业组织决定”；该项表述纯属无中生有。综上，本题选择[C]。

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