题目内容

【题目】Butterflies(蝴蝶) are some of the most fascinating (迷人的) and beautiful insects in the world. Adult butterflies will live about two to four weeks. They use their senses of sight, touch, hearing, smell and taste to survive in the world, find food and mates, lay eggs in a proper place, migrate (迁移) and avoid hungry enemies.

Butterflies have large compound eyes (复眼), which allow them to see in all directions without turning their heads. Like most insects, butterflies are very near-sighted, so they are more attracted to many flowers. Butterflies do not “see” colors such as red, green and yellow, but they can sense sunlight, which shows the direction in which the sun is shining, as well as ultraviolet light (紫外线), which is present on many flowers and guides butterflies to find honey sources.

Butterflies have a very well-developed sense of smell, but it is not in their nose, since they don’t have one. Sense receptors (感受器) are in their antennae (触角), feet and many other parts of the body. They can help butterflies find their favorite flower honey, food and mates.

Butterflies’ feet have sense organs that can taste the sugar in flower honey, letting the butterflies know if something is good to eat or not. Some females also carefully choose host plants by tasting to find proper places to lay their eggs. Adult butterflies feed their babies using a long tube. Butterflies force blood into the tube to straighten it out, allowing them to feed. Butterflies get all their food from this tube.

Butterflies don’t have ears. Instead they “hear” sounds through their wings by sensing changes in sound vibrations (振动).

Butterflies may possess senses we haven’t known about till today, because their body structure (结构) is very different and difficult to understand, when observed through our own human senses. (325 words)

【1】What can we learn from the second paragraph?

A. Butterflies have good eyesight.

B. Butterflies can see in all directions and don’t need to turn heads.

C. Butterflies are sensitive (敏感的)to bright colors including red and yellow.

D. Butterflies cannot sense the ultraviolet light.

【2】How do butterflies hear sounds?

A. Using their feet to sense the vibration of things

B. Using their ears to listen directly

C. Using their wings to sense the sound vibrations

D. Using their antennae to judge the sound

【3】Why do female adult butterflies carefully choose the host plants?

A. To find high-qualified honey.

B. To have a good place for living.

C. To make it easier for them to hide from the enemies.

D. To find a proper place for their eggs.

【4】What does the last paragraph imply?

A. There’s a long way to understand butterflies well

B. Butterflies give great help to human beings

C. Butterflies are the most beautiful insects in the world

D. Butterflies possess more senses than humans

【5】The text mainly focuses on __________.

A. butterflies’ living habits

B. butterflies’ beauty

C. butterflies’ daily activities

D. butterflies’ senses

【答案】

【1】B

【2】C

【3】D

【4】A

【5】D

【解析】本文是一篇说明文,主要写了美丽的生物——蝴蝶的特殊的生理结构。蝴蝶的生理结构十分难理解,仅仅通过人的感知能力来了解还远远不够。

【1】考察分析归纳题。第二段第一句为中心句,Butterflies have large compound eyes (复眼), which allow them to see in all directions without turning their heads. 蝴蝶拥有很大的复眼,这使得它们可以不用转头就能看到各个方向的事物,故选B

【2】细节题。根据倒数第二段Butterflies don’t have ears. Instead they “hear” sounds through their wings by sensing changes in sound vibrations (振动).蝴蝶没有耳朵,取代她们的耳朵,声音是根据震动的变化通过它们的翅膀传达的。故选C

【3】细节题。根据倒数第二段第三句Some females also carefully choose host plants by tasting to find proper places to lay their eggs.一些雌性蝴蝶也非常关注找到好的寄宿植物,通过品尝来找到适合的地方产卵。故选D

【4】分析归纳题。最后一段写蝴蝶有我们至今还不知道的感知能力,因为他们的身体结构我们难以理解。故选A

【5】分析推断题。本文是一篇说明文,作者描写蝴蝶的生理结构和生活习性,重点放在描写蝴蝶的感知能力。故选D

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【题目】Plastic is everywhere because plastic is an extremely useful material.It is cheap, strong and lightweight.What’s more, it can take on nearly any form or shape, from soft and stretchy (有弹性的) to hard and glasslike.

Plastic, however, is far from perfect.It may even be bad for us.Studies now suggest that poisonous chemicals can get out of some types of plastic, get into our bodies, and cause a variety of health problems, including cancer, birth defects and attention deficit hyperactivity disorder (注意缺陷障碍).

Two types of chemicals in particular have raised special concern lately.They are called phthalates (邻苯二甲酸盐) and Bisphenol-A (二酚基丙烷), BPA for short. Not all plastic products contain them.But the ones that do are surrounded by controversy (争议).That’s because experts disagree on how dangerous these chemicals are.

Plastic is a single word, but plastic isn’t just one thing.What all plastics share in common are plasticizers -- special chemicals that allow the material to be changed into nearly any shape or texture.Plasticizers (塑化剂) are added to plastic during the manufacturing process.

Phthalates and BPA are two types of plasticizers that work in different ways.Phthalates add softness to things like shampoo bottles, raincoats and rubber.They are also used in perfumes and makeup.BPA, on the other hand, gives a hard, clear, almost glasslike feel to products such as infant bottles.BPA also appears in food and soda cans, DVDs and other unexpected places.

How do these chemicals get into us? When plastic is heated in the microwave or dishwasher, chewed on or scratched, the chemicals can seep (渗透) out of the plastic.Even though we can’t see them, we eat them, drink them and breathe them in.

Scientists and parents are especially worried about young children, who tend to chew on everything, including plastic.Dozens of countries, including the European Union, Japan, Canada and Mexico have already banned phthalates from products made for children younger than three.California and Washington have done the same.And a number of other states are considering similar rules.As for BPA, Canada became the first country to ban the chemical from baby bottles.A dozen states are considering it.

【1】What can we know about the plastic from the first paragraph?

A.Its characters and effects.

B.Its wide use and bad points.

C.Its importance and chemicals.

D.Its popularity and advantages.

【2】Which of the following products contains BPA?

A.A soft plastic cup. B.A pencil eraser.

C.A baby milk bottle. D.A new perfume.

【3】Phthalates and BPA can get into us __________.

A.through mouth or nose

B.through blood transfusion

C.by feeling plastic products

D.by heating in the microwave

【4】What is the passage mainly about?

A.A new ban on plastic products.

B.Problems caused by the plastic.

C.Good points of the plastic.

D.The use of plasticizers.

【题目】 【1】 . But I feel strongly that education is always worth the cost. Here are a few words of my wisdom that I hope will help others come to that conclusion as well:

Think long term. Sure the present job market sucks, and the earning potential of a college graduate is not what it used to be, but that's just the way things are right now. I believe that eventually the economy will cycle back 2 . When it does, a degree will give you a leg up on the competition.

Don't let the dollar be your guide. For some degrees the potential earnings from related jobs simply aren't enough to justify the high cost of tuition. That may be true if you're looking at hard numbers, but there's more than just money—for one, what about happiness? If you choose your major based on how much money it might earn you, 3 .

Be creative. There are the obvious jobs that relate to your degree, 4 . A down market forces people to think outside the box when it comes to their job search. If you have a degree in English, you've likely already considered the obvious option of teaching or writing, but publishing, proofreading or speech-writing might not have crossed your mind.

Make it count. Take advantage of the time by networking and interning. 5 . That's one reason it's hard to get hired straight out of college today. Another advantage? When a position does open up, you're already there.

A. Employers hire peoplewho already have skills and experience.

B. you may be happy about it.

C. and the job market will follow.

D. It's no secret that the cost of higher education is climbing.

E. The tuition of college is dropping recently.

F. and then there are the not-so-obvious.

G. you could end up miserable.

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