题目内容
（请给出正确答案）
We had a long conversation about her parents.
A．talk
B．speech
C．debate
D．discussion
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更多“We had a long conversation about her parents.A．talkB．speechC．debateD．discussion”相关的问题
A．he sold it to the architects and builders immediately.
B．the Egyptians used it to build the Pyramids.
C．it was accepted favorably by the public.
D．most people had doubt about its safety.
A．Simultaneously
B．Almost
C．Absolutely
D．Basically
A．grow
B．wrap
C．hide
D．test
"Helping them isn't about showing your kids how to do the work. It's about being genuinely interested and having regular conversations about what they're learning," says J. Gary Knowles, a professor at the Ontario Institute for Studies in Education, part of the University of Toronto.
Rozon has a slew of suggestions for how to get more involved. "Get to know the teacher. Discuss ways to tailor the assignments to your child's learning style. Spend time in the classroom. Ask for outlines of unit studies so you can find supplementary materials at the library or through videos. Read your child's textbooks: If you work a few pages ahead, you'll be able to help them with problems they encounter."
Reading is another must, says Rozon. "Even after your children can read themselves, hearing somebody else read aloud is important. We nearly always have a book on the go; we read for at least a half hour before bedtime."
The more engaged a parent is, the more the child benefits, adds Bruce Arai. "The evidence is clear: Parental involvement is one of the most important factors in school success." Arai cites the National Longitudinal Survey of Children and Youth, sponsored by Human Resources Development Canada (HRDC), which is measuring all aspects of child development. "The hours children spend in class are but one element of their education," states HRDC, which says parental support, along with teacher support and a positive attitude towards school, all contribute to academic success.
"I see every moment of every day as a learning experience," says Goforth. "The most satisfying part of it is seeing the love of learning continued. I'm not squelching my children's desire to learn by insisting they learn. They learn because they want to."
Adds Jeanne Lambert, mother of Carey Graham: "Make the time, take the time, guide, lead, and encourage. If nothing else, your children learn you care, and that's the most important lesson you can give them."
According to the passage, parents should help their children with their homework.
A．Right
B．Wrong
C．Not mentioned
A．honest
B．rich
C．good-looking
D．high-ranking
A．Right
B．Wrong
C．Not mentioned
You've probably heard that no two snowflakes are alike. Of course, nobody has ever confirmed that statement by examining every one of the estimated one septillion snowflakes that drift to Earth each year. Still, Kenneth Libbrecht, a professor at the California Institute of Technology, is confident that the statement is true.
Snowflakes aren't flaky, says Libbrecht. At their basic level, they're crystalline. The lattice of every snowflake is six-sided in shape. The simplest snow crystals are six-sided flat plates and six-sided columns. Such crystals are common in places where the air is extremely cold and dry. Snow crystals acquire their special beauty when their simple six-sided symmetry blossoms. Under the right conditions, each of the six comers of a crystal sprouts what is called an arm. In a matter of minutes, the arms can become highly ornate and give the crystal a star like appearance.
Several factors in the environment affect the shape and growth rate of a snow crystal. One factor is humidity. Crystals grow faster and in more intricate shape as humidity increases. A second factor is air temperature. A snowflake is born when several molecules of water vapor in a cloud land on a speck of dust and freeze to form. a simple crystal. As the young crystal bops around in the cloud, it passes through air pockets of varying temperatures. If the crystal passes through a pocket of air that is, say, -15 degrees Celsius, it will grow quickly and sprout six arms, says Libbrecht. If the crystal is then tossed into a warmer pocket, one about -10℃, the arms' tips will stop growing quickly and form. six-sided plates. If the crystal then drifts into an even warmer pocket of about -5℃, its top and bottom will grow more quickly than its sides and become more column like in shape.
In the course of its life span, a snow-crystal might flutter through many warmer and colder pockets, acquiring a complicated and unique growth history. Such a history will give rise to a snowflake that is unlike any other. Each arm on the snowflake will look exactly like every other one, but the crystal itself will be one of a kind.
Using his cooling tanks, Libbrecht has learned how to create snow crystals of different shapes--plates, columns, needles, etc. Libbrecht has even refined his techniques so that he can make crystals that look highly similar to one another. Still, he lacks the control to manufacture identical twin snowflakes. A slight difference in humidity and temperature can upset the growth profile6 of a crystal.
What does Professor Libbrecht believe to be true？
A．No two snowflakes are exactly the same in shape.
B．Somebody has examined all the snowflakes that fall on Earth.
C．The statement that no two snowflakes are alike is confirmed.
D．None of the above.
A．Humidity and temperature.
B．Water and falling speed.
C．Air and altitude.
D．Both B and C.
根据材料回答下列各题： Tiny Invaders The human body is truly amazing．It allows US to sense the world around US，to do work and have fun，and to move from place to place．In fact，the human body does its work so well that most people don’t think about it very much一until they get sick． The germs(致病菌)that make people sick are everywhere．You can’t see them,but they’re there．They’re sitting on your desk．They’re hiding on your computer’S keyboard．They’re even in the air that you are breathin9．There are two types of germs：viruses and bacteria(细菌)．Viruses are germs that can only live inside animals or plants．Viruses cause illnesses such as flu and measles(麻疹)．Bacteria are tiny creatures．Some bacteria are good．They can help your stomach break down food． Other bacteria aren’t so good．They can make you sick．Bacteria can cause sore throats(喉痛)and ear infections． How can you stop these tiny invaders from making you sick？Your skin is the first defense against germs．You can prevent some illnesses simply by washin9，with soap and water．But germs can still enter the body through small cuts in the skin or through the mouth，eyes，and nose． Once germs are inside your body，your immune(免疫的)system tries to protect you．It looks for and destroys germs．How does it do that？Special cells patrol your body．Some of these cells actually eat germs!Other cells make antibodies．An antibody sticks to a germ．There is a different antibody for each kind of germ．Some antibodies keep germs from making you sick．Others help your body find and kill germs．After a germ is destroyed，the antibodies stay in your body．They protect you if the same kind of germ comes back．That way you will not get the same illness twice． You can keep your body healthy by eating a nutritious(有营养的)diet to make your immune system strong．You can also help your immune system fight germs by getting vaccinated(接种)．Vaccines are medicines．They contain germs that have been killed or weakened．The dead germs can’t make you sick．Instead，they cause your body to make antibodies．If the same germ ever shows up again, then your antibodies attack it． Viruses can only live inside people or animals．
A.Right
B.Wrong
C.Not mentioned
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