Which of your two hands do you use more? Very few of us can use both hands equally well. M
Most people ______.
A.are left-handed
B.are right-handed
C.can use both hands equally well
D.never use left hands
Most people ______.
A.are left-handed
B.are right-handed
C.can use both hands equally well
D.never use left hands
Scientists don't know why this happens. They used to think that we inherited (继承) this tendency from our animal ancestors (祖先), but this may not be true. Monkeys are our closest relatives in the animal world. Scientists have found that monkeys prefer to use one of their hands more than the other, but it can be either hand. There are as many right - handed monkeys as there are left - handed ones. Next time you visit the zoo, watch the monkeys carefully. You' 11 see that some of them will prefer to swing from their right hands, and others will use their left hands. But most human beings use their right hands better, and this makes life difficult for those who prefer to use their left hands.
Most of us use our right hands ______ the left ones.
A.as well as
B.not so well as
C.much better than
D.more better than
Which of the following is TRUE according to the text?
A.If you want to keep healthy, you have to meet your personal trainer.
B.The diabetes-related claims from Arnica employees have been increased.
C.The American business doesn't do anything concerned with personal health.
D.Abiding by healthy choices is facile.
Which of the following activities involve role-play?
A. Use the pictures in the textbook , but cut them up , paste them on cards and give each student a different picture. Then ask the students to ask each other what is in their picture.
B. The teacher prepares two sets of gapped dialogues and asks the students to work in pairs to ask each other to complete their dialogue.
C. Give two students a card respectively and ask them to conduct a dialogue according to the instruction in the cards. Instructions on one card may be" You and your friends are going to have lunch. You need to decide where to go. You would like to try something different because you' re tired of the same food. You make a suggestion. "
Passage Two
There are two factors which determine an individual's intelligence. The first is the sort of brain he is born with. Human brains differ considerably, some being more capable than others. But no matter how good a brain he has to begin with, an individual will have a low order of intelligence unless he has opportunities to learn. So the second factor is what happens to the individual the sort of environment in which he is reared (抚养). If an individual is handicapped environmentally, it is likely that his brain will fail to develop and he will never attain the level of intelligence of which he is capable.
The importance of environment in determining an individual's intelligence can be demonstrated by the case history of the identical twins, Peter and Mark. Being identical, the twins had identical brains at birth, and their growth processes were the same. When the twins were three months old, their parents died, and they were placed in separate foster (收养) homes. Peter was reared by parents of low intelligence in an isolated community with poor educational opportunities. Mark was reared in the home of well-to-do parents who had been to college. He was read to as a child, sent to good schools, and given every opportunity to be stimulated intellectually. This environmental difference continued until the twins were in their late teens, when they were given tests to measure their intelligence. Mark's IQ was 125, twenty-five points higher than the average and fully forty points higher than his identical brother. Given equal opportunities, the twins, having identical brains, would have tested at roughly the same level.
36. This selection can be titled ______.
A. Measuring Your Intelligence
B. Intelligence and Environment
C. The Case of Peter and Mark
D. how the Brain Influences Intelligence
It has long been known that people who are depressed have lower-than-usual levels of the brain chemicals serotonin or noradrenaline, or in some cases both. Many also have a blunted sense of taste, which is presumably caused by changes in brain chemistry. To unpick the relationship between the two, Lucy Donaldson and her colleagues at the University of Bristol, UK, gave 20 healthy volunteers two antidepressant drugs, and checked their sensitivity to different tastes. The drug that raised serotonin levels made people more sensitive to sweet and bitter tastes, the team reports in the Journal of Neuroscience. The other, which increased noradrenaline, enhanced recognition of bitter and sour tastes.
In healthy people, volunteers whose anxiety levels were naturally higher were less sensitive to bitter and salty tastes. "What hasn't been done be{ore is to look precisely at which tastes are affected in depression," says Donaldson. Now the results are in, "we can discriminate between the chemicals and the tastes that seem to be altered," she says. Testing sensitivity to sweet and sour tastes could potentially help doctors to pick up on which chemicals are dipping, guiding them when choosing which drug to rectify the problem.
Currently, doctors rely on physical and emotional symptoms to make a best guess at an individual's imbalance, prescribe a drug and wait about a month to check on any improvement. Good doctors have about a 60-80% success rate in selecting the right drug the first time, says psychiatrist Jan Melichar, a co-author on the paper. Are there any decent tests for prescribing drugs for depression? "No. We do a best guesstimate," says Melichar. "I'm excited by this finding because in 3, 5 or 7 years we could have a simple taste test. "
Next, the team plans to perform. similar tests in depressed people, and in healthy volunteers given another brain chemical called tryptophan. This chemical would lower the healthy subjects' levels of serotonin, as actually happens in depressed patients.
The work has also generated interest from flavor houses--companies that develop chemicals for the food and drink industry--who are interested in making foods taste just as sweet with half the amount of sugar. "Theoretically there would be the possibility of enhancing your meal with drugs that affect brain chemicals so that things would taste better--you couid have a 'designer taste tablet'," Donaldson says.
The study of the link between mood and taste can help______.
A.people to gain better mood
B.doctor to cure depression
C.people to increase appetite
D.researchers to get prescriptions
Most institutions provide courses which【43】new students to develop the skills they need to be【44】listeners and note-takers.【45】these are unavailable, there are many useful study-skills guides which【46】learners to practice these skills【47】. In all cases it is important to【48】the problem【49】. actually starting your studies.
It is important to【50】that most students have difficulty in acquiring the language skills【51】in college study. One way of【52】these difficulties is to attend the language and study-skills classes, which most institutions provide throughout the【53】year. Another basic【54】is to find a study partner【55】it is possible to identify difficulties, exchange ideas and provide support.
(66)
A.extending
B.illustrating
C.performing
D.conducting
(56)
A.meaning
B.case
C.sense
D.situation
(41)
A.meaning
B.case
C.sense
D.situation
(36)
A.Not
B.No
C.None
D.Nor