Memory is the heart of computer system.()

A nice memory of the city will _____ in the heart of every tourist.

A、strain

B、distract

C、trap

D、linger

A．They are new movements

B．They are good for memory

C．They can slow down their heart rate

D．They are good for joints

A.对景写生 Painting on-site

B.记忆写生 Painting from memory

C.文字写生 Painting through text

D.以上都是 All of the above

put computers to practical business use, but below the surface it is the heart of an(22) - the kernel - that provides the technical wizardry to juggle multiple programs, connect to networks and store(23).A traditional kernel provides all the functions for applications. The kernel(24) memory, I/O devices and parcels out processor time.The kernel also supports(25) and fault tolerance, which is the ability to recover automatically when parts of the system fail.

A．Databases

B．Applications

C．Drivers

D．Games

Applications put computers to pratical business (1), but below the (2) it's the heart of an operating system—the kernel that provides the technical wizardry to juggle multiple program, connect to networks and store (3) . A traditional kernal provides all the functions for applications. The kemal (4) memory, I/O devices and parcels out processor time.

The kernel also supports security and fault (5) , which is the ablity to recover automatically when parts of the system fail.

A．used

B．use

C．apply

D．applied

Applications put computers to practical business(67), but below the(68)it's the heart of an operating system-the kernel-that provides the technical wizardry to juggle multiple program, connect to networks and store(69).

A traditional kernel provides all the functions for applications. The kernel(70)memory, I/0 devices and parcels out processor time.

The kernel also supports security and fault(71), which is the ability to recover automatically when parts of the system fail.

A．used

B．use

C．apply

D．applied

onnection between exercise and brain development. Judy Cameron, a scientist at Oregon Health and Science University, studies brain development. According to her research, it seems that exercise can make blood vessels, including those in the brain, stronger and more fully developed. Dr. Cameron claims this allows people who exercise to concentrate better. As she says: "While we already know that exercise is good for the heart, exercise can literally cause physical changes in the brain."

The effects of exercise on brain development can even be seen in babies. Babies who do activities that require a lot of movement and physical activity show greater brain development than babies who are less physically active. With babies, even a little movement can show big results. Margaret Barnes, a pediatrician (儿科医师), believes in the importance of exercise. She thinks that many learning disabilities that children have in elementary school or high school can be traced back to a lack of movement as babies. "Babies need movement that stimulates their five senses. They need to establish a connection between motion and memory. In this way, as they get older, children will begin to associate physical activity with higher learning," says Margaret.

Older people can beef up their brains as well. Cornell University studied a group of seniors ranging in age from seventy to seventy-nine. Their study showed a short-term memory increase of up to 40 percent after exercising just three hours a week. The exercise does not have to be very difficult, but it does have to increase the heart rate. Also, just like the motion for infants, exercise for older people should involve some complexity. Learning some new skills or motions helps to open up memory paths in the brain that may not have been used for a long time.

For most people, any type of physical activity that increases the heart rate is helpful. The main goal is to increase the brain's flow of blood. And your brain can benefit from as little as two to three hours of exercise a week.

第41题：Research by Dr. Cameron seems to suggest that exercise can

A．generate new blood vessels.

B．change the way a person thinks.

C．promote brain development.

D．divert one's attention.

从供选择的答案中选出应填入英语文句中()的正确的答案。

Applications put computers to practical business (A), but below the (B) it's the heart of an operating system the kernel that provides the technical wizardry to juggle multiple program, connect to networks and store (C) .

A traditional kernel provides all the functions for applications. The kernel (D) memory, I/O devices and parcels out processor time.

The kernel also supports security and fault (E), which is the ability to recover automatically when parts of the system fail.

A: ① used ② use ③ apply ④ applied

B: ① earth ② bottom ③ table ④ surface

C: ① graphics ② data ③ text ④ image

D: ① manages ② manage ③ managed ④ managing

E: ① error ② question ③ tolerance ④ problem

hold the attention and interest of your students; you must be a clear speaker, with a good, strong, pleasing voice which is fully under you control; and you must be able to act what you are teaching, in order to make its meaning clear. Watch a good teacher, and you will see that he does not move motionless before his class; he stands the whole time he is teaching; he walks about, using his arms, hands and fingers to help him in his explanation, and his face to express his feeling. Listen to him, and you will hear the loudness, the quality and musical note of his voice always changing according to what he is talking about. The fact that a good teacher has some of the gifts of a good actor doesn't mean he will indeed be able to act well on the stage, for there are very important differences between the teacher's word and the actor's. The actor has to speak words which has been learnt by heart, he has

1、A good teacher ______.

A、knows how to hold the interest of his students

B、must have a good voice

C、knows how to act on the stage

D、stands or sits motionless while teaching

2、In what way is a teacher''s work different from an actor''s？ ()

A、The teacher must learn everything by heart.

B、He knows how to control his voice better than an actor.

C、he has to deal with unexpected situations.

D、 He has to use more facial expressions.

3、The main difference between students in class and theatre audience is that ().

A、students can move around in the classroom

B、students must keep silent while theatre audience

C、no memory work is needed for the students

D、the students must take part in their teachers' plays