Understanding phonics will also help children know which letters to use when they are writing words. （)

In the old days, when schools wanted to communicate with parents, they sent a letter home. Now, in addition to email, schools and parents can connect through social media like Twitter, Facebook and Skype. The Houston Independent School District in Texas has more than two hundred thousand students. Most of them come from lower-income families. Education Week recently reported on a digital literacy training program that the district has just started for parents. The school district with help from Microsoft has established computer training centers for parents at five of its campuses. Other schools around the country are also increasing their digital services and not just in English. Many schools provide information in Spanish and other languages. Free online translation sites can also help parents stay informed about their children s education. Some school systems also give parents online access to their children s grades and school work. Six hundred students attend Knapp Elementary School near Philadelphia, Pennsylvania. Principal Joe Mazza says almost one in five students come from Bangladesh and twelve percent from South Korea. The school diversity is clear as soon as visitors enter the building. " So if you are walking in our school lobby, you are going to see English, Bengali, Korean, Spanish and all of the Finnish in the school. Now we feel that a welcoming, bright, informative, child-centered lobby really helps parents feel welcomed, honored and respected."

Which of the following is NOT mentioned as a means for schools to communicate with parents?

A．Social media.

B．Parent meetings.

C．Letters.

D．Email.

A recruitment drive for 100,000 Olympic volunteers, which aims to help the Chinese and foreigners get involved in the 2008 Games, was Officially launched in Beijing last month. You intend to apply for certain positions, and now write a letter the recruitment office, showing your motivation and stating your eligibility for the requirements. Write your letter in no less than 100 words and write it neatly. Do not sign your own name at the end of the letter, use "Li Ming" instead. Do not write the address.

Nowadays it is understood that a diet, which contains nothing harmful may yet result in serious disease if certain important dements are missing. These elements are called "vitamins". Quite a number of such substances are known and they are given letters to identify them, A, B, C, D, and so on. Different diseases are associated with deficiencies of particular vitamins. The vitamins necessary for a healthy body are normally supplied by a good mixed diet, including a variety of fruit and green vegetables, h is only when people try to live on a very restricted diet, say during extended periods of religious fasting, or when trying to lose weight, that it is necessary to make special provision to supply the missing vitamins.

One example of the dangers of a restricted diet may be seen in the disease known as beriberi(脚气病), which used to afflict large numbers of Eastern peoples who lived mainly on rice. In the early years of this century, a Dutch scientist called Eijkman was trying to discover the cause of beriberi. At first he thought it was transmitted by a germ. He was working in a Japanese hospital, where the patients were fed on rice which had had the outer husk removed from the grain. It was thought this would be easier for weak, sick people to digest. Eijkman thought his germ theory was confirmed when he noticed, the chicken in the hospital yard, which were fed on scraps from the patients' plates, were also showing signs of the disease. He then tried to isolate the germ fie thought was causing the disease, but his experiments were interrupted by a hospital official, who claimed that the huskless rice, even though left over by the patients, was too good for chickens. It should be recooked and the chickens fed on cheap, coarse rice with file outer covering still on the grain. Eijkman noticed that the chickens began to recover on the new diet. He began to consider the possibility that eating unmilled rice somehow prevented or cured beriberi—even that a lack of some ingredient in the husk might be the cause of the disease.

Indeed this was the case. The element needed to prevent beriberi was shortly afterwards isolated from rice husk and is now known as vitamin B. The milled rice, though more expensive, was in fact perpetuating the disease the hospital was trying to cure. Nowadays, this terrible disease is much less common; thanks to our knowledge of vitamins.

Deficiencies of the various vitamins______.

A．cause identical diseases

B．are no; serious except in the case of vitamin C

C．cause different diseases

D．are often caused by scurvy

What do we know about the students from the letter?

A．They are from different countries.

B．It is difficult for them to come to America.

C．It takes them a long time to decide what to learn in America.

A.They are from different countries．

B.It is difficult for them tocome to America．

C.It takes them a long time todecide what to learn in America．

“Seasame Street” has been called “the longest street in the world”.

This is because the television program by that name can nowf be seen in so many parts of the world.The program,which went on the air in New York in 1969,uses songs,jokes,and pictures to give children a basic understanding of numbers, letters and human Relationships. More than 6 million children in the United States watch it regularly. The viewers (观众) include more than half the nation, schildren before school age.

Many teachers consider the program a great help, though some teachers find that problems happen when the first-year pupils who have learned from “Seasame Street” are in the same class with those who have not watched the program. Tests have shown that children who watch it five times a week learn more than those who seldom watch it. In the United States the program is shown at different hours during the week in order to increase the number of children who can watch it regularly.

Why has “Seasame Street” been so much more successful than other children’s shows? Many reasons have been suggested. Perhaps one reason is that mothers watch “Seasame Street” along with their children. But the best reason for the success of the program may be that it makes every child watching it feel able to learn. The child finds himself learning,and he wants to learn more.

People call “Seasame Street” the longest street in the world because

A.it is the longest TV program ever produced

B.it took much more time to put on this program than any other one

C.it is shown almost throughout the world

D.it has been on the air since 1969

“Seasame Street” is a TV program produced mainly forA.children

B.children of sdiool age

C.primary school teachers and pupils

D.mothers and their children

“Seasame Street” is so successful mainly becauseA.mother watch it with their children

B.it contains songs,stories and jokes

C.it is shown at different hours during the week

D.children are willing and able to learn when watching it

When the first-year pupils who ha?e watched the program are in the same class with those who haven’t，______.A.teaching will becomes a bit difficult

B.they will not get on well with one another

C.it is impossible to begin class at the fixed time

D.they don’t want to leam anythihg more

请帮忙给出每个问题的正确答案和分析，谢谢！