The International Agency for Research on Cancer(IRIC)，part of the United Nations’ World Health Organization(WHO), claims that radiofrequency electromagnetic fields(RF/EMF)（射频电磁场）is possibly carcinogenic(致癌的) to humans. The main sources of RF/EMF are radios, televisions, microwave ovens, cellphones, and Wi-Fi devices.

Even if we want to, we can’t eliminate（消除） our exposure or our children’s, to RF/EMF. But, we many need to limit that exposure, when possible. That was among the conclusions of a controversial survey article published in the Journal of Microscopy and Ultrastructure entitled “Why children absorb more microwave radiation than adults: The consequences.” From an analysis of relevant studies, the authors argue that children and adolescents are at considerable risk from devices that radiate microwaves. The following points were offered for consideration:

●    Fetuses(胎儿) are even more vulnerable than children. Therefore pregnant women should not expose their fetus to microwave radiation.

●    Adolescent girls and women should not place cellphones in their bras or in hijabs (headscarf)

●    Cellphone manual warnings make clear an overexposure problem exists.

●    Government warnings have been issued but most of the public are unaware of such warnings.

●    Wireless devices are radio transmitters, not toys. Selling toys that use them should be monitored more closely.

  Children and fetuses absorb more microwave radiation, according to the authors, because their bodies are relatively smaller, their skulls are thinner, and their brain tissue is weaker.

     This is not a call to throw out all electronic devices. However, at the very least, it should open up the discussion about different safety levels for adults versus children. Hopefully more studies will be done to check or contradict the assumptions so far. In the meantime, are the government’s current regulations adequate? The exposure levels they warn against haven’t seemed to have been updated for more than 19 years.

In a Network World opinion article ominously titled “Is Wi-Fi killing us … slowly?” columnist Mark Gibbs makes the point that “…laws and warnings are all very well but it’s pretty much certain that all restrictions on products that use microwave technology will error(犯错) on the safe side; that is, the side that’s safe for industry, not the side of what’s safe for society.” Gibbs then added this ominous closing question, “Will we look back (sadly) in fifty or a hundred years and marvel at how Wi-Fi and cellphones were responsible for the biggest health crisis in human history?”

       I have known my friend Rebecca for a long time.We first  56   at a friend’s birthday party five years ago.We found out that we 57  liked pop and jazz music.So I invited Rebecca over to my place.We  58  to my CDs together and soon became best friends.

Three years ago,Rebecca’s parents invited me to go on holiday  59  them.It was great.We spent three  60  weeks in a little cottage in Ireland(爱尔兰). Rebecca and I loved  61  along the beautiful beach.We took a lot of  62  and had a lot of fun.

Two years ago,I spent a week in hospital and Rebecca came to see me every day. But then,last year,Rebecca’s father changed his job,and they moved to  63  town.Since then we haven’t seen each other very much.  64  ,we have talked on the phone and we’ve written  65  to each other.

                                                         The Influence of Science and Technology

       As science and technology develops, new words  (1)  to express new inventions, new techniques   (2)  new concepts. Because of the rapid  (3)  during the last 50 years, new words and expressions appeared one after another and   (4)  takes less time for them to   (5)  well-accepted.   (6)  , the word “google” was first used to   (7)   a searching engine and a website, now people use it  (8)  , e.g. “I googled you last night”, which   (9)  “I went to the internet and searched for   (10)  about you”.

      51____________ and sorrow(痛苦) sometimes come together. I 52 ____________  it last weekend. Last Sunday was 53 ________________ for our soccer team. We competed in the 54 ______________ game of the community league with another team in our city. We 11 boys prepared and practiced for a long time 

55____________ the final game. After 60 minutes of 56___________ , we won the game. 57 ____________ , after that game, two team members would transfer(转学) to another school. It made us 58 ___________ a bit sad. But then we gave them a 59____________ good farewell present. We were happy 60 ____________ .

I had a   (1)  day last Sunday . It was fine and the sun was shining brightly when I  (2)  in the morning. There was a new park in the city . So I decided to go sightseeing and take some photos in the beautiful   (3)  . After I had a quick breakfast, I took my   (4)  with me and set off. Everything went well at first , I   (5)  my trip so much that I didn’t realize the weather had turned bad. I began to run,   (6)   it was too late. I was caught in the rain and was  (7)  through . I kept on running until I got to a bus stop . I stood there  (8)  for a long time for the bus ,shaking with cold.  (9)  after I got home，I had a high fever, which made me stay in bed for three days.  (10)  a day!