Chinese parents are being urged to pay more attention to their children"s nutrition, after a study
revealed that unscientific ways of feeding babies and a lack of trace elements are the two biggest threats
to youngsters"health. Experts drew these conclusions from a two year study into the nutrition and health
situation of children under six in ten cities including Beijing, Shanghai and Guangzhou.
Started in 2003 by the China National Children"s Center, the survey includes 8043 children, equally
divided between the sexes. It shows 37 percent of surveyed children have baby food earlier than the
recommended age of four to six months old, with another 35percent taking it later, which in return brings
about a nutrition difference as these children grow up. "Our children above four to six months old fall
behind foreign children in terms of their physical well?being," said Zhao Shunyi, head of the center. She
called on Chinese parents to pay more attention to their children"s nutrition after they stop breast feeding
at six months old.
Trace elements
The survey also shows more than half of the children above six months old are deficient in five trace
elements which are crucial to their physical development-magnesium, copper, calcium, iron and zinc.
"Lack of zinc will lead to low level of intelligence," said Dou Xiaowei, vice director of the National Center
for Child Nutrition Quality Supervision and Testing. "Parents had better choose baby food with plentiful
trace elements, especially calcium, iron and zinc."
Zhao said, "The center is urging the government to strengthen child food production management by
revising related laws. Child food producers should be advised to market products with rich trace
elements."
6. months 7. five 8. zinc 9. rich 10. strengthening
warn doodling students, sure that they must be daydreaming.
However, according to a recent study, doodling while listening to a boring lecture helps concentrate
(集中)the attention:
Andrade, a psychology professor in England asked participants to listen to a boring lecture. Half the
participants were told to color in squares and circles freely on a piece of paper while listening to the
lecture. The other half weren"t given a task. After it was over, the participants were asked to retell the
lecture.
Those given the doodling task (color in squares and circles) remembered 29 percent more information
than the non-doodlers.Andrade said.
"If someone is doing a boring task, like listening to a dull conversation, they may start daydream,"
said Professor Andrade.
"Daydreaming distracts(使分心)them from the task, resulting in poorer performance. A simple task,
like doodling, can stop them from daydreaming without affecting their performance at the task," he said.
So the next time you"re doodling during a class, and you hear "pay attention", you can tell the teacher
with confidence that you"ve been paying attention to every word.
B. teachers are against doodling
C. doodling may help concentrate
D. doodling can lead to daydream
B. doodlers are doing no task
C. doodlers pay no attention in class
D. doodlers are not polite to them
B. an interesting story is told
C. watching a long TV program
D. having a conversation with the teacher
B. if you have daydream during classes you"ll have a good memory
C. daydreaming is better than doodling
D. doodling can stop us from daydreaming
B. daydreaming is different from doodling
C. doodling will be helpful in any occasion
D. every student should doodle in class
housework, but with one of the following suggestions, you really can get your children to help at home.
If you give your children the impression that they can never do anything quite right, then they will
regard themselves as unfit or unable persons. Unless children believe they can succeed, they will never
become totally independent.
My daughter Mary"s fifth-grade teacher made every child in her class feel special. When students
received less than a perfect test score, she would point out what they had mastered (掌握) and declared
firmly they could learn what they had missed.
You can use the same way when you evaluate (评价) your child"s work at home. Don"t always scold
and you should give lots of praise instead. Talk about what he has done right, not about what he hasn"t
done. If your child completes a difficult task, promise him a Sunday trip or a ball game with Dad.
Learning is a process (过程) of trying and failing and trying and succeeding. If you teach your children
not to fear a mistake of failure, they will learn faster and achieve success at last.
B. school education
C. family education
D. pre-school education
B. the more encouragement and praise you give, the more responsible and helpful children will become
C. it is very difficult to make children responsible for housework
D. children can be forced to help with housework
That is to ________.
B. promise him a trip
C. give him a punishment
D. promise him a ball game
B. take pride in Mary"s fifth-grade teacher
C. do as what Mary"s teacher did in educating children
D. follow Mary"s example because she never fails in the test
B. practice makes perfect
C. no pains, no gains
D. failure is the mother of success
with Roger-a llama (美洲驼). But since llamas are used to thinking of animals like coyotes(土狼) and
dogs as threats, it took Roger a few weeks to accept the family dog.
Roger protects the sheep and lambs in two ways. First, he keeps the sheep together. A hungry
coyote will try to scatter(分散) the flock and then pick off a weak or small animal that has become
separated from the rest. But when a coyote threatens the Lorton"s sheep, they all run to Roger,
depending on him to defend them.
And he does, with his second defense: confronting(对抗) the coyote. Llamas are very curious and
will run at top speed to investigate anything that looks interesting. When a coyote sees a
three-hundred-pound llama rushing toward it, the coyote will not usually wait around to see what the
llama wants.
And once a llama realizes that a coyote is threatening the flock, the llama will stand between the
coyote and the sheep to defend them. Often, the llama will charge toward the coyote with its head
down. As it runs, it will sometimes call out an alarm to the flock in a high-pitched voice. Since Roger"s
arrival, coyotes haven"t gotten any sheep from the Lortons.
B. coyotes are sheep"s main enemy
C. llamas are much smarter than coyotes
D. some types of dogs can"t protect sheep
B. curious
C. brave
D. patient
B. farmers using a llama to guard sheep
C. citizens keeping a llama as a pet
D. businessmen selling llamas to farmers
actions for two weeks. When he came to analyze(分析) their embarrassing errors , he was
surprised to find that nearly all of them fell into a few groups .
One of the women, for instance, on leaving her house for work one morning threw her pet
dog her ear-rings and tried to fix a dog biscuit on her ear. " The explanation for this is that the
brain is like a computer, " explains the professor, " People programme themselves to do certain
activities regularly. It was the woman"s custom every morning to throw her dog two biscuits and
then put on her ear-rings. But somehow the action got reversed(颠倒) in the programme ." About
one in twenty of the incidents the volunteers reported were these " programme assembly failures."
Twenty per cent of all errors were " test failures "-primarily due to not verifying the progress of
what the body was doing . A man about to get his car out of the garage passed through the back
yard where his garden jacket and boots were kept , put them on -much to his surprise . A woman
victim reported : " I got into the bath with my socks on ."
The commonest problem was information " storage failures". People forgot the names of people
whose faces they knew, went into a room and forgot why they were there, mislaid something, or
smoked a cigarette without realizing it.
The research so far suggests that while the " central processor" of the brain is liberated from
second-to-second control of a well-practiced routine, it must repeatedly switch back its attention
at important decision points to check that the action goes on as intended. Otherwise the activity
may be " captured " by another frequently and recently used programme, resulting in embarrassing
errors.
B. to classify and explain some errors in human actions
C. to find the causes which lead to computer failures
D. to compare computer functions with brain workings .
B. A man returning home after work left his key in the lock.
C. A lady fell as she was concentrating on each step her feet were taking.
D. An old man, with his shoes on, was trying to put on his socks.
B. changing
C. checking
D. stopping
B. the elimination of one"s total memory
C. the temporary loss of part of one"s memory
D. the separation of one"s action from consciousness
away or fight back. Plants certainly cannot run away, and they lack teeth and claws. But plants can
defend (保护) themselves by using both physical and chemical means.
Some plants have their own ways to keep animals away. For example, the leaves of the holly plant
have sharp spines (刺) that discourage grass-eating animals. Holly leaves on lower branches have more
spines than leaves on upper branches. This is because the lower leaves are easier for most animals to
reach.
Some plants, such as the oak tree, have thick and hard leaves that are difficult for animals to eat. Some
grasses may contain a sandy material; eating such grasses wears down the animal"s teeth.
Many plants also have chemical defenses. Some plants produce chemicals that taste bitter or cause an
unpleasant reaction. Some plants may fight against an attack by increasing the production of these chemicals. When a caterpillar (毛虫) bites a tobacco leaf, the leaf produces a chemical messenger. This messenger sends to the roots the information to produce more nicotine. The higher levels of nicotine discourage the
caterpillar.
Many plants depend on both physical and chemical defenses. A certain plant in China, for instance,
has prickly (多刺的) leaves, and each prickle contains poisonous venom (毒液) A single experience with
this kind of plant will teach an animal to stay away from it in the future.
B. physical means
C. bitter chemicals
D. sandy materials
B. Its roots send a messenger to discourage the caterpillar.
C. Its roots increase the production of nicotine when it is attacked.
D. Its leaves produce poisonous sand to drive the caterpillar away.
B. How Plants Defend Themselves
C. Attacks and Defenses
D. How Animals Eat Plant Leaves
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