-OK, ______ you make it shot.

    When I first entered university, my aunt, who is an English professor, gave me a new English dictionary. I was 1to see that it was an English dictionary, also known as a monolingual dictionary.2it was a dictionary intended for non—native learners, none of my classmates had one, 3, to be honest, I found it extremely 4 to use at first. I would look up words in the dictionary and 5 not fully understand the meaning. I was used to the 6 bilingual dictionaries, in which the words are 7 both in English and Chinese. I really wondered why my aunt 8 to make things so difficult for me. Now, after studying English at university for three years, I 9 that monolingual dictionaries are 10 in learning a foreign language As I found out, there is 11 often no perfect equivalence(对应)between two 12 in two language. My aunt even goes so far as to 13 that a Chinese "equivalent" can never give you the 14 meaning of a word in English! 15, she insisted that I read the definition(定 义) of a world in a monolingual dictionary 16 I wanted to get a better understanding of its meaning. 17, I have come to see what she meant. Using a monolingual dictionary for learners has helped me in another important way. This dictionary uses a(n) 18 number of words, around 2, 000, in its definitions. When I read these definitions, I am 19 exposed to(接触)the basic words and learn how they are used to explain objects and ideas. 20 this, I can express myself more easily in English.

    In the mid­1950s，I was a somewhat bored early­ado lescent male student who believed that doing_any_more_than_necessary_was_wasted_effort.One day，this approach threw me into embarrassment.

    In Mrs.Totten's eighth­grade math class at Central Avenue School in Anderson，Indiana，we were learning to add and subtract decimals (小数)．

    Our teacher typically assigned daily homework，which would be recited in class the following day.On most days，our grades were based on our oral answers to homework questions.

    Mrs.Totten usually walked up and down the rows of desks requesting answers from student after student in the order the questions had appeared on our homework sheets.She would start either at the front or the back of the classroom and work toward the other end.

    Since I was seated near the middle of about 35 students，it was easy to figure out which questions I might have to answer.This particular time，I had completed my usual two or three problems according to my calculations.

What I failed to expect was that several students were absent，which threw off my estimate.As Mrs.Totten made her way from the beginning of the class，I desperately tried to determine which math problem I would get.I tried to work it out before she got to me，but I had brain freeze and couldn't function.

    When Mrs.Totten reached my desk，she asked what answer I'd got for problem No.14.“I...I didn't get anything，”I answered，and my face felt warm.

     “Correct，”she said.

    It turned out that the correct answer was zero.

    What did I learn that day？First，always do all your homework.Second，in real life it isn't always what you say but how you say it that matters.Third，I would never make it as a mathematician.

    If I could choose one school day that taught me the most，it would be that one.

    More over smart phone, the intelligent watch is about to take your spot as the latest hi­tech current, allowing wearers to glance at messages and even take calls without touching their phones. The i'm Watch, available since 2011, is the flagship product of an Italian company—i'm. This smart watch is an assist to the smart phone, with which it can communicate by Bluetooth wireless technology. It means you can leave your phone in your pocket as you answer or reject a call, review e­mails or read updates from friends on Twitter or Facebook.

    The i'm Watch also has its own applications, such as i'm Sport, which links with a heart rate detector (检测器) to allow a runner to check his pulse. Such functions already exist in specialized sports watches but not on watches that are linked to smart phones.

    With a square shape, a 3.8­centimeter touch screen and various colors, the i'm Watch sells for a minimum of 300 Euros ($390) for the basic model and prices climb to 16 000 Euros for a luxury model in silver or decorated with diamonds.

    So far, the watch has already found 30 000 buyers, 80 percent of whom are men aged 25 to 50. “Seventy percent are iPhone users, 25 percent Samsung and the rest are other telephones using Google's Android operating system，” said Massimiliano Bertolini, a manager of the company, which aims to sell more than 200 000 watches this year. The company's target market is the person who is always glued to his smart phone, even in meetings or at the movies, or people who wish to keep an eye on their heartbeat during exercise. They will especially target women with advertisements emphasizing its design rather than its technology.