2017最新七选五专练

1. Brain Transplants

Research on the human brain has been attracting more and more scientists in recent

years. 1 If we compare a human brain to a hard disc, what the scientists are doing is to

make better use of the hard disc.

The idea that a human brain could be transplanted may come from Frankenstein. In 1999,

an experiment turned a bear into a dolphin. 2 They were made of the memory area in

the dolphin‟s brain containing information about swimming. They had a series of useful

information, which was saved into a button-sized chip (芯片). Later the information was

transplanted into the action memory area in the bear‟s brain. 3 It proved to be a

highly successful experiment and a bear was turned into a dolphin.

Recently, another memory transplant was performed at the Motor Nerve Research

Institute of the University of California. The experiment had an entire transplant of the

memory area. 4 The transplant was performed from a dog named Genius to a dog

named Idiot. Genius could follow up to 100 gestures and orders made by its master. It was a

real genius in memorizing. However, Idiot had no contact with people since its birth. It

became an animal with nothing in its brain, without any memory.

5 When the two dogs woke up, Idiot had grasped all the abilities Genius possessed;

it was good at memorizing and sensible. It could follow every gesture and any command

given by its master. But Genius gave no response to its master, and did not recognize him at

all.

A. The experiment was a complete success.

B. It included actions, moods, logic, words, images, etc.

C. Then it was released by means of electric power.

D. Different images have different meanings in the memory area.

E. Using the most advanced technology, detailed images were produced.

F. Discoveries show that messages are carried by the central nervous system in the brain.

G. One of the latest topics is how to change the human brain or combine it with the computer.

2. W. Lloyd Jerome’s Dental Surgery If you walk into W.Lloyd Jerome‟s dental surgery in Glasgow, You‟l see bright

paintings and a fashionable blue couch which patients sit on while he checks their teeth.

Jerome says,“That‟s because they‟re frightened.” __1__“That‟ s why I don‟ t wear a white

coat. I find that‟s one ofthe things that people associate with pain. In fact, my philosophy is

that dental treatment should take place in an atmosphere of relaxation, interest and, above all,

enjoyment” , which is all highly shocking for anyone who associates dental treatment with

pain, or at the very least, formal, clinical visits. He says,“Ifpeople are relaxed, entertained

and correctly treated, they will forget such previous unpleasant experiences.”

“Virtual -reality headsets are one of his new relaxation techniques. ___2____ The

headsets are used for the first check-up, where the patient sits on the blue couch and watches

ar film while I look at their teeth. Then the headset switches to a special camera, to give the

patient a visual tour around their mouth.”

“Another key point is that the surgery smells more like a perfume shop than a dentist‟s.

Today there is the smell oforange. „When people walk in, I want them to realize with all their

senses that it‟s not like going to dentist‟s. Smell is very important. ____3_____”

Known as Glasgow‟s most fashionable dentist, Jerome is keen to point out that he takes

his work very seriously. ____4___ For example, Jerome uses a special instrument which

sprays warm water on the teeth to clean them, rather than scraping them.“It feels a bit

strange, but as long as people are relaxed, it‟s not painful.”

___5___“One ofthe things I found out there was that when you make it easier for the

patient, you make it easier for yourself.”He sees his patie nt-centred attitude as the start ofa gradual movement towards less formality in the conservative British dentistry profession. At

that moment, a patient arrives. Jerome rushes over, offers him a cup oftea, asks him what

video he‟d like to watch and leads him gently towards the chair.

A. Five years ago, Jerome went to the United States to do research.

B. He has tried to create an environment where people are not afraid.

C. The relaxation techniques are important but the quality of the treatment is the most

important thing.

D. We were the first practice in Britain to introduce them.

E. Now they look forward to their visits here.

F. That dental smell of surgical spirit can get the heart racing in minutes ifyou‟re frightened

of dentists.

G. Fifty percent ofthe population only go to the dentist when they‟re in pain.

3. School Phobia School phobia is a type of illness which causes the students, typically between the ages