题目内容
The sun is setting on a summer night. At the entrance to a deep, dark cave, a few bats fly out and begin swirling high up into the air.More and more of the small, furry creatures appear.Within a few minutes, a whole river of bats is pouring out of the cave, and they keep coming, millions and millions of them.
Sound like a scary horror movie? Believe it or not, this scene takes place every night, all summer long, at Bracken Cave in Texas, where 20 million bats fly outside to feed on insects."It is magical," says Jim Kennedy of Bat Conservation International in Austin Texas."It is one of the most majestic(壮丽的) animal movements on the planet."
Every March or April, Mexican Free-tailed bats migrate up to 1,000 miles (1609 kilometers) from their winter home in Mexico to this cave, where they raise their young.Soon after they arrive, each mother gives birth to one pup.As many as 500 baby bats live crammed into one square foot (30.48 cubic centimeters)of space, and all those bodies create nice warm temperatures to keep them cozy and comfortable.If you've ever lost sight of your parents on a crowded playground, you may be wondering how mother bats recognize their children.They use their sense of smell to tell which pup is theirs when it is.time for the babies to nurse.
The cave, a quiet place in winter, is full with life all summer-and not just with bat residents.Bat waste soon covers the floor, providing food for tiny organisms(生物体) like bacteria and fungi(真菌类).And then there are the bugs.
When the adult bats leave the cave at night to feed, they are helping humans.They eat tons of insects in a single night, including many pests that eat farmer's crops. And they get rid of mosquitoes, too.
66.In the first paragraph, the author .
A.provides some information about bats B.describes the movement of bats
C.advises the reader to watch bats D.stresses the danger of bats in summer
67.By saying “Sound like a scary horror movie?” what does the author mean?
A.Bats are better horrible characters in films. B.People tend to feel afraid of bats.
C.The above scene is somewhat unbelievable.D. The cave mentioned is full of adventure.
68.According to the passage, the reader possibly expects that .
A.no people know how many bats live in Bracken Cave.
B.a bat mother would have trouble finding her own baby.
C.bat waste causes much harm to the human environment.
D.farmers will never have a good harvest without the bats.
69.Which of the following is TRUE about the bats?
A.They are well protected by farmers.
C.They benefit from some tiny organisms.
B.They smell better than other animals.
D.They travel from Mexico to America yearly.
70.From the second paragraph, we can know Kennedy's opinion of the bat's flying in group is .
A.mysterious B.frightful C.crazy D.enjoyable
BCBDD
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Adult butterflies use their senses of sight, touch, hearing, smell, and taste to survive in the world, find food and mates, lay eggs in an appropriate place, migrate, and avoid hungry predators.
Sight
Butterflies have large, compound (multifaceted) eyes, which allow them to see in all directions without turning their heads. Like most insects, butterflies are very nearsighted, so they are more attracted to a large stand of flowers rather than individual plants. Butterflies do not "see" colors such as red, green, and yellow, but sense polarized(偏振的) light, which indicates the direction the sun is shining, as well as ultraviolet light, which is present on many flowers and guides butterflies to nectar (花蜜)sources.
Smell
Butterflies have a very well-developed sense of smell, but it's not in their nose (since they don't have one). Sense receptors located in their antennae, feet, and many other parts of the body help butterflies find food (usually flower nectar), and mates (the female smells the male's pheromones).
Taste
Butterfly's feet have sense organs that can taste the sugar in nectar, letting the butterfly know if something is good to eat or not. Some females also taste host plants in order to find appropriate places to lay their eggs. Adult butterflies and moths feed using a proboscis, a long, coiled tube. Butterflies force blood into the tube to straighten it out, allowing them to feed. Butterflies get all their food from this tube.
Hearing
Butterflies don't have ears. Instead they "hear" sounds through their wings by sensing changes in sound vibrations.
Butterflies may possess senses we don't even know about yet because their anatomy is very different than ours, and therefore difficult to understand when perceived through our own human senses.
【小题1】From the passage we can know that butterflies can see_____
A.thing behind them | B.thing in the distance |
C.most bright colors | D.flower nectar from a distance |
A.sense organs of sight and smell | B.sense organs of sight and taste |
C.sense organs of smell and hearing | D.sense organs of smell and taste |
A.by using their feet | B.by using a tube. |
C.by using sense receptors | D.by using their wings. |
A.The food sources of butterflies. | B.The habits of butterflies. |
C.The unusual body of butterflies. | D.the sense of butterflies. |
Have you ever been to the beautiful country of Holland and its capital Amsterdam? Anyone who has traveled to Amsterdam would probably agree on one thing: Amsterdam’s story is a tale of two cities — one during the day and a completely different one at night.
When the sun is up, this largest city in the Netherlands sits quietly on the Amstel River. You can rent a bicycle, visit the Van Gogh or Anne Frank museum, or take a water taxi. But when the sun goes down, the partying begins. In the big clubs and in the coffee shops, tourists gather to talk politics and smoke.
Several areas of the city clearly show the two worlds that rule Amsterdam. And they’re all within a short cab ride of each other. For example, Dam Square attracts daytime sightseers to its festivals, open markets, concerts and other events. Several beautiful and very popular hotels can be found there. And there’s the Royal Palace and the Magna Plaza shopping mall. But at night party-seekers come to the square. Hip hop or funk music (疯狂音乐) is heard there. So if you come, be ready to dance. The clubs don’t shut down until 4 am.
And while you’re there, check out the various inexpensive ways to tour the city. Don’t worry about getting lost. Although Dutch is the official language, most people in Amsterdam speak English and are happy to help you with directions. And you’ll notice that half the people walking around in the streets are on bicycles they rent. Amsterdam also has a well-planned canal system. For about 10 dollars, you can use the canal bus or a water taxi to cruise (巡游) the “Venice of the North”.
The city has a historic past. One impressive (印象深刻的) place to visit is the Anne Frank House on Nine Street. It was there that the young Jewish girl wrote her famous diary during World War II. Visitors can view Anne’s original diary and climb behind the bookcase to the room where she and her family hid from the Nazis for two years.
【小题1】 What means of transport is not available to visitors in Amsterdam?
A.A carriage. | B.A bicycle. |
C.A canal bus. | D.A water taxi. |
A.The wonderful past of Amsterdam. |
B.The experience of a beautiful girl survivor. |
C.The life of Jewish during World WarⅡ. |
D.The suffering of the Dutch in wars. |
A.call up people’s memories of World WarⅡ |
B.tell readers what A Tale of Two Cities is about |
C.instruct visitors what to do and see in Holland |
D.offer readers some information about Amsterdam |
A.a private diary | B.a test paper | C.a travel journey | D.a history book |