Last Friday, as usual I went home by bike. But at a crossing, I {#blank#}1{#/blank#} (sudden) knocked an old man off his bike. I hurried over and found that his leg {#blank#}2{#/blank#} (injure). Nervous and worried, I called my mom and told her what had happened. We decided to take him to the hospital first.

    Shortly after we arrived at the hospital, my mother came. I had some doubt {#blank#}3{#/blank#} there was anything seriously wrong with the old man. The doctor gave the old man a {#blank#}4{#/blank#} (detail) examination. To our delight and relief, there was nothing seriously wrong with him. We thanked the doctor and left. After that, we went back to the place {#blank#}5{#/blank#} the old man's bike was parked, only {#blank#}6{#/blank#} (find) it didn't work. So I immediately found a repairman to get it {#blank#}7{#/blank#} (fix). Soon he finished {#blank#}8{#/blank#} (repair) it. Before the old man left, my mom offered him our cell phone number in case he needed to contact us. Then the old man got on his bike and we waved goodbye to each other.

    If I {#blank#}9{#/blank#} (ride) my bike carefully, I would have avoided the accident. Consequently, the unexpected accident made me realize that in the first place we should be careful, but once it occurs, we should take {#blank#}10{#/blank#} (responsible).

Unlike some other European languages, English is a little tricky when it comes to writing. How a word{#blank#}1{#/blank#} (pronounce) and how it is actually spelt can be very different things. Take two simple{#blank#}2{#/blank#}(verb) like"have"and "save" shouldn't they be pronounced the same? Why do "sir", "her" and "fur" all rhyme, but "fork"and "work" don't?

Imagine, then, a situation{#blank#}3{#/blank#}two words are spelt and pronounced exactly the same way, but have{#blank#}4{#/blank#}(complete) different meanings. Welcome to the world of homonyms(同形同音异义词){#blank#}5{#/blank#} ( take), for example, the word "fair"- it can be a kind of festival or an adjective to describe the colour of your hair.

So how do you know which{#blank#}6{#/blank#}(mean) someone is referring to?— You don't, except by the context. Obviously, if someone asks you to "give them a hand", they don't want you to remove{#blank#}7{#/blank#}is at the end of your arm.

    Sometimes even the context doesn't help much- the result can be {#blank#}8{#/blank#} (amuse). These sentences play with the double meaning of a noun :I used to be a banker, {#blank#}9{#/blank#}I lost interest.

A small boy swallowed some coins and had to go to hospital when his grandmother phoned{#blank#}10{#/blank#} (ask) how he was, the nurse said, "No change yet."

"Waiter, will the bread be long?" "No, sir. It's round."

    Last Monday, the students at an elementary school welcomed a new student. He was not shy at all and seemed {#blank#}1{#/blank#} (recognize) all kids by their names immediately. You may wonder who can do that. Well, the new student was not a human {#blank#}2{#/blank#}a robot. The 1.2 meter tall student is part of a robot experiment. The experiment is to test {#blank#}3{#/blank#}if robots can naturally deal with a group of people.

    {#blank#}4{#/blank#}(compare) to other students, the robot appeared to be smarter than his “classmates”, because he was programmed with the facial{#blank#}5{#/blank#}(photo) and voiceprints of all kids and teachers there. Also, he {#blank#}6{#/blank#}design) with the contents of all the textbooks. As {#blank#}7{#/blank#}result, he impressed everyone by answering every question {#blank#}8{#/blank#} (correct).

    In fact, this is not the first time the robot {#blank#}9{#/blank#} (be) around humans. In the past years he has done many tasks, one of {#blank#}10{#/blank#} was accompanying patients at hospital.

    Senior citizens are the first to come to our mind when you think of hearing loss, but in a recent report, hearing professionals worry teenagers will soon outnumber aging adults {#blank#}1{#/blank#} it comes to living with hearing loss.

    The rise in popularity of personal audio devices from iPods to smart phones has had dangerous effect on the ears of those who use them most, teenagers! A research {#blank#}2{#/blank#} (conduct) by the World Health Organization finds that nearly 50% of teens {#blank#}3{#/blank#} (fall) into the habit of exposing themselves to unsafe levels of sound so far.

    A sound is considered unsafe when it goes beyond 85 decibels (分贝). At that level, it takes just 8 hours of listening over your lifetime to cause damage. The louder the sound is, the {#blank#}4{#/blank#} (little) time it takes to cause damage. Because hearing loss is {#blank#}5{#/blank#} (typical) considered a health problem for the elderly, it is difficult to convince already stubborn teenagers that they really are doing damage {#blank#}6{#/blank#} their ears.

    Young adults {#blank#}7{#/blank#} have been exposed to loud noise over a period of time may have some hearing loss symptoms. Their {#blank#}8{#/blank#} (able) to learn is compromised, and they may have difficulty developing social skills.

    In an effort to help teens better protect their hearing, we suggest {#blank#}9{#/blank#} (set) volume limits on personal audio devices. {#blank#}10{#/blank#} is also good to limit the amount of time exposed to noise and to take listening breaks to give the ears a rest.