Blogit is the first online subscription（订阅） network connecting individual readers and writers．As Blogit grows, amazing things are happening．A friendly, active community has formed: readers are finding writers they enjoy; strangers are becoming friends; old classmates are running into one another; even romances are blossoming．And popular writers have already earned more than $1,000 on Blogit each month．

Want to try? First of all, Blogit lets writers easily realize their dreams to write．Writers get their own writing space, where they are free to write on any topic, whenever they want: from opinion and observation to novel and poetry．Secondly, writers experience the excitement of knowing they are read, and enjoy gradually gaining a loyal（忠实的） following．It' s simple for writers to find readers on Blogit, since there is a various, worldwide audience of people, waiting to read and comment —-right now．

    You never know whom you might meet on Blogit．Whether writers are looking for a quiet readership or are hungry for a spirited discussion, they will find it on Blogit. Many writers even have readers who have become new friends. Blogit member introduction appear on many of the top Internet search engines, which allows writers to publicize （宣传）their identity and helps increase their number of readers．

    Thanks to modern technology, writers get everything they need to begin．They can even make additional choices, to add pictures and select different styles, for example．There is nothing to install(安装), and no  special software is needed．As Blogit grows, we are upgrading（更新）our systems and adding new features(专题节目) requested by members．We do our best to help members, replying to most questions within one business day．

I invite you to try Blogit today．Here' s my promise: if you find that you aren't being read on Blogit, simply cancel（取消） your subscription and you will not be charged again．It' s quick and easy to sign up．If you sign up now, you'll get all of Blogit's benefits for only $12.95 per month．You can start to be read and begin earning money directly!

根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

    Scottish pupils recently were part of a new scheme that allowed them to take their exams online. Those examinations provided a glimpse of the future in May when 120 candidates in 10 centers in Scotland sat in front of computers to take a multiple-choice online exam. Although candidates were using a computer mouse instead of a pen, in all other ways the exam was the same as normal.

    Exam rooms were set out to ensure that only the candidates and the teachers were able to see the individual screens. The online answers were sent directly to a safe area. According to the students at St Ninian's in East Renfrewshire who took an online French exam, it was definitely the most motivated they had ever felt when taking an exam.

    “I could go as fast as I wanted to, rather than as slow as everyone else wanted to,” said one. “It was better than looking back and forth between the questions,” said another. One pupil even described it as fun.

    Their head teacher, Dorothy Graham, was not so surprised, “They are so used to doing things on computers that it seems natural for them. The boys liked it because they didn't have to worry about how neat their work was.” The only things that worried her were power cuts and systems' crashing.

    It's thought that online exams could be the norm (常态) in about five years. However, last year there were warnings about computerizing exams in England and Wales. It's thought that it could be unfair to some students if they come from homes without access to a computer.

    Teenagers who spend hours in front of the television may have a poorer diet as young adults.

    A study, which included nearly 1,400 high school students, found those who watched TV for five hours or more per day had less healthy diets than peers(同龄人) five years later. Why does this happen? Should the parents take any measures?

    On the one hand, people who spend a lot of time in front of the TV, especially teenagers, may snack more, and that may affect their long-term diet quality.

    On the other hand, TV ads for fast food, sweets and snacks tempt teenagers to eat more of those foods. And TV time might also replace exercise time for some kids.

    Lead researcher Dr. Daheia J. Barr-Anderson, of the University of Minnesota in Minneapolis, told Reuters Health a clear correlation between TV time during high school and diet quality in young adulthood. While the heaviest TV viewers were eating the most junk food, those who'd watched less than two hours per day had the highest intake(吸收) of fruits, vegetables, whole grains and high-calcium food. In her opinion, parents should limit and monitor TV viewing.

    As far as I am concerned, children should watch no more than two hours of television per day. And parents should set a good example by eating right, being physically active and curbing their own TV time.

    At first, muffled (听不太清的)conversations made researchers at a San Diego aquarium puzzled, but when a diver thought he was being told to get “out” of the water they realized the conversations were coming from a white whale.

    Noc was about one year old when he was caught off the Pacific coast of Canada. He was kept in an open-ocean pen (围栏) at the US National Marine Mammal Foundation in San Diego, California. After seven years at the Foundation, he began, automatically, to make unusual sounds, a report in the latest issue of the journal, Current Biology, said.

    “We thought of the whale' s vocalizations(发出的声音) as an attempt to imitate humans. Whale vocalizations often sounded as if two people were talking just out of the range of our understanding,” the authors said. “ 'These conversations' were heard several times before we finally realized the whale was the source.” The researchers realized it was Noc when a diver surfaced and asked, “Who told me to get out?” It was then that they realized the word “out”, which was repeated several times, had come from Noc. Later, his speech-like sounds were recorded in the air and underwater.

    Noc started making the sounds after seven years in the open-ocean pen, and continued making them for another four years. He died five years ago. Researchers have now analyzed the sound recordings. It was the first time that sound recordings had shown how such sounds imitated speech and were different from the usual calls of the species.

    The speech-like sounds were lower than normal whale sounds and much closer to those of the human voice. Also, whales talk to each other by blowing air through their noses, rather than using a larynx(喉), as people do.

    “We don't claim that our whale was a good imitator compared to such well-known imitators as parrots,” the researchers said. “However, the behavior we observed is an example of vocal learning by the white whale. It seems that Noc's close association with humans played a role in how often and how well he employed his human voice.”

Following the old saying of "early to bed and early to rise" I used to go to bed at 10 pm and get up early at 6 am to get ready for school. But that day, as it was cloudy, I continued to sleep for long, thinking it to be the early hours of the day.

Suddenly, I heard a loud voice which startled me up and made me sit upright. It was my mother's voice who was knocking and shouting, "Get up honey. It's 6:45 am already! You are getting late for school!" As it was a cloudy day, I hadn't realized that it was almost 7 and continued dozing for long!

But thank fully that day our pick-up person who generally used to come at 6:50 am got late due to the showers and arrived just in the nick of time when I was ready. By the time we reached school it was a quarter to eight and the drizzle from previous night had finally stopped. I entered the classroom fearing the teacher's anger, but saw only a few students had made it to school. Therefore, the principal declared a holiday. "Hurray!" We all cheered in a chorus at the unexpected holiday and decided to walk back home.

    As it had been continuously drizzling since the previous night there was water all over the place and the roads were impassable. Just then, at a distance my sister and I saw little kids playing in knee-deep water in the streets which touched the play button in us. We quickly approached them and merrily jumped and hopped in the pool of water with them. With shoes in our hands we continued parading on the muddy streets. We were thrilled and our hearts were filled with joy at the sight of the green and fresh leaves on the trees; the frogs drew our attention as we tried to catch butterflies.

    We finally reached home busily playing and laughing with mud-spattered uniforms and shoes. We hurriedly changed our outfits, washed up and sat watching TV with a bowl of hot soup! No doubt, I thoroughly enjoyed this day and secretly prayed for many such days in the future! To this day when it pours, the memories of that eventful rainy day bring a smile on my face!

    Portland, Oregon, just got another reason to call itself "Bike City USA".

UPS has started a trial program to deliver packages there using an electric-powered bicycle. The environmentally friendly Cargo Cruiser is a tricycle with a large brown box on the back. Like any electronic bike, the Cargo Cruiser can be powered by foot, motor, or a combination of both.

    UPS began testing e-Bikes in Hamburg, Germany, in 2012, but this is the first time the technology has been used for package deliveries in the United States.

The e-Bikes support UPS's efforts to reduce its carbon emissions, ease urban noise levels, and improve air quality. The amount of energy to be saved by using e-Bikes hasn't been quantified, but the test vehicle in Portland "will probably displace about two gallons of fuel every day", said Scott Phillippi, UPS's engineering manager.

    Phillippi says that one e-Bike alone won't create a huge difference in UPS's carbon emissions, but he describes it as “a piece of our overall strategy” as far as environmental impacts and efficiencies.

    It also ties into the company's broader strategy to settle a problem that troubles Portland and other cities around the world: traffic jam. According to UPS, traffic jam costs it hundreds of millions of dollars a year in additional operating costs. The time when the average UPS delivery truck is stuck in traffic is about 16 minutes a day, slowing its deliveries and increasing the company's carbon emissions.

    The pilot program is in its early stages and already has hit its first stage: ice storms pulled trees and branches down all over the city, blocking bike lanes and making travel dangerous. How do e-Bikes deal with it?

    If the trial proves successful, you may be able to see UPS delivery people wearing bike shorts in other places around the country, "Other cities have expressed some interest," Phillippi said.