You don't object ______ my calling you by your first name , do you？

A.that they come

B.that they came

C.to their come

D.to their coming

You object () , don't you？

A. that they come

B. that they came

C. to their come

D. to their coming

A.complain

B.resist

C.oppose

D.object

C

Life in the Clear

Transparent animals let light pass through their bodies the same way light passes through a window. These animals typically live between the surface of the ocean and a depth of about 3，300 feet—as far as most light can reach. Most of them are extremely delicate and can be damaged by a simple touch. Sonke Johnsen， a scientist in biology， says， “These animals live through their life alone. They never touch anything unless they’re eating it， or unless something is eating them.”

And they are as clear as glass. How does an animal become see-through？ It’s trickier than you might think.

The objects around you are visible because they interact with light. Light typically travels in a straight line. But some materials slow and scatter（散射） light， bouncing it away from its original path. Others absorb light， stopping it dead in its tracks. Both scattering and absorption make an object look different from other objects around it， so you can see it easily.

But a transparent object doesn’t absorb or scatter light， at least not very much， Light can pass through it without bending or stopping. That means a transparent object doesn’t look very different from the surrounding air or water. You don’t see it ————you see the things behind it.

To become transparent， an animal needs to keep its body from absorbing or scattering light. Living materials can stop light because they contain pigments（色素） that absorb specific colors of light. But a transparent animal doesn’t have pigments， so its tissues won’t absorb light. According to Johnsen， avoiding absorption is actually easy. The real challenge is preventing light from scattering.

Animals are built of many different materials————skin， fat， and more————and light moves through each at a different speed. Every time light moves into a material with a new speed， it bends and scatters. Transparent animals use different tricks to fight scattering. Some animals are simply very small or extremely flat. Without much tissue to scatter light， it is easier to be see—through. Others build a large， clear mass of non-living jelly-lie（果冻状的）material and spread themselves over it .

Larger transparent animals have the biggest challenge， because they have to make all the different tissues in their bodies slow down light exactly as much as water does. They need to look uniform. But how they’re doing it is still unknown. One thing is clear for these larger animals， staying transparent is an active process.

63. According to Paragraph 1， transparent animals_______.

A.stay in groups

B.can be easily damaged

C.appear only in deep ocean

D.are beautiful creatures

Losing your ability to think and remember is prettyscary. We know the risk of dementia (痴呆症) increases with age. But if you have memory slips, you probably needn't worry. There are pretty clear differences between signs of dementia andage-related memory loss. After age 50, it's quite common to have trouble remembering the names of people, places andthings quickly, says Dr. Kirk Daffner of Brigham and Women's Hospital in Boston. The brain ages just like the rest of the body. Certain parts shrink, especially areas in the brainthat are important to learning, memory and planning. Changes in brain cells can affectcommunication between different regions of the brain. And blood flow can be reduced asblood vessels narrow. Forgetting the name of an actor in a favorite movie, for example, is nothing to worry about. Butif you forget the plot of the movie or don't remember even seeing it, that's far moreconcerning, Daffner says. When you forget entire experiences, he says, that's "a red flag that something more seriousmay be involved." Forgetting how to operate a familiar object like a microwave oven, orforgetting how to drive to the house of a friend you've visited many times before can also besigns of something going wrong. But even then, Daffner says, people shouldn't panic. There are many things that can causeconfusion and memory loss, including health problems like temporary stoppage of breathingduring sleep, high blood pressure, or depression, as well as medications (药物) likeantidepressants. You don't have to figure this out on your own. Daffner suggests going to your doctor to checkon medications, health problems and other issues that could be affecting memory. And the bestdefense against memory loss is to try to prevent it by building up your brain's cognitive (认知的) reserve, Daffner says. "Read books, go to movies, take on new hobbies or activities that force one to think in novelways," he says. In other words, keep your brain busy and working. And also get physicallyactive, because exercise is a known brain booster.Why does the author say that one needn't be concerned about memory slips？ 1..Why does the author say that one needn't be concerned about memory slips？()

A、Not all of them are symptoms of dementia.

B、They occur only among certain groups of people.

C、Not all of them are related to one's age.

D、They are quite common among fifty-year-olds.

Which of the following sentences is INCORRECT？

A．I suppose he ought to have known that, don"t I？

B．He seldom gives his wife a gift, does he？

C．There won"t be any trouble, will there？

D．No one would object, would they？

A.The contract is still legal as the object was legal at the time of creating that contract

B.The contract is illegal even if the parties don't complete the contractual agreement

C.The parties of the contract will be discharged from that contract

D.Both parties are still obligated to complete their contractual agreements

ft eye--the opposite of the right-left, left-right connection we employ for assessing one another in the wild. The image in a True Mirror (which shows what you look like to others) can come as something of a shock. You tend to look the way you do in photographs, which for many people is also a shock. (This is the flip side (反面) of the start you sometimes get when looking at the reflected image of someone you are accustomed to seeing in person.) A newspaper headline held up to a True Mirror doesn't appear backward--it reads just fine. But your own face may seem oddly asymmetrical. Facial mannerisms nurtured in front of a normal mirror may in a True Mirror be revealed in a different light. "It is a wholly new view for many," the True Mirror's promotional literature concedes, "and not surprisingly, some don't like or feel uncomfortable with the new look."

Another issue: in a True Mirror you seem to have far less control over the figure in the glass than you do in a normal mirror. If you turn to the right in front of a normal mirror, the image turns with you and ends up facing in the same direction, completing the visual palindrome (回文). In a True Mirror the image faces the other way, as if you were about to begin pacing off for a duel with yourself; and when you take a step, the image steps away from you. In a normal mirror your reflected finger comes out to meet your real one until they touch, like Michelangelo's God and Adam. In a True Mirror the reflected finger comes at you from the other side of the glass, as if pointed by the other hand. Ordinarily, you have no difficulty looking at a normal mirror and guiding your hand to an object reflected in it. Try this with a True Mirror, and your grasp will prove errant. Shaving becomes a blood sport. If all the review mirrors in America's cars were suddenly replaced by True Mirrors, there could be a very special episode of ER (美国电视剧《急诊室》).

In an ordinary mirror your right eye stares at your right eye and your left eye at your left eye--the opposite of the right-left, left-right connection we employ for assessing one another in the wild. The image in a True Mirror (which shows what you look like to others) can come as something of a shock. You tend to look the way you do in photographs, which for many people is also a shock. (This is the flip side (反面) of the start you sometimes get when looking at the reflected image of someone you are accustomed to seeing in person.) A newspaper headline held up to a True Mirror doesn't appear backward--it reads just fine. But your own face may seem oddly asymmetrical. Facial mannerisms nurtured in front of a normal mirror may in a True Mirror be revealed in a different light. "It is a wholly new view for many," the True Mirror's promotional literature concedes, "and not surprisingly, some don't like or feel uncomfortable with the new look."

Another issue: in a True Mirror you seem to have far less control over the figure in the glass than you do in a normal mirror. If you turn to the right in front of a normal mirror, the image turns with you and ends up facing in the same direction, completing the visual palindrome (回文). In a True Mirror the image faces the other way, as if you were about to begin pacing off for a duel with yourself; and when you take a step, the image steps away from you. In a normal mirror your reflected finger comes out to meet your real one until they touch, like Michelangelo's God and Adam. In a True Mirror the reflected finger comes at you from the other side of the glass, as if pointed by the other hand. Ordinarily, you have no difficulty looking at a normal mirror and guiding your hand to an object reflected in it. Try this with a True Mirror, and your grasp will prove errant. Shaving becomes a blood sport. If all the review mirrors in America's cars were suddenly replaced by True Mirrors,

A．as reflected in water

B．what we look like to others

C．in photographs

D．in a True Mirror

Which of the following italicized parts is used as an object complement？

A．Have you got everything ready for the journey？

B．Don"t marry young.

C．This fruit can be eaten raw.

D．Alone and broke, Hamas struggles to rule.