Dr.Yuan {#blank#}1{#/blank#} for a way to increase rice harvests without  expanding the area of the fields...Dr. Yuan is now {#blank#}2{#/blank#} his knowledge in India, Vietnam and many other less developed countries to increase their rice harvests...{#blank#}3{#/blank#} to his research, the UN has more tools in the battle to {#blank#}4{#/blank#} the world of hunger.

    He made people laugh at a time {#blank#}5{#/blank#}they felt depressed, so they could feel more {#blank#}6{#/blank#}with their lives...His parents were both music hall {#blank#}7{#/blank#}.

    However, people from places like Spain, Italy or south American countries approach others closely and are more {#blank#}8{#/blank#} to touch them.

    In {#blank#}9{#/blank#} , though, studying international customs can certainly help avoid difficulties in today's world of cultural {#blank#}10{#/blank#} .

    My best friend and I walked to an ice cream shop today. I brought my water bottle out of habit and commented to her that I had no idea why I brought it. We kept {#blank#}1{#/blank#}(go) though. On our way, a man asked {#blank#}2{#/blank#}either of us had money for water, or a drink or something. He was sitting on the ground at the time with a sign he stopped holding up.

    I offered my reusable water bottle for him{#blank#}3{#/blank#}(keep). He drank all the water quite {#blank#}4{#/blank#} (quick). He gave me my bottle back after all. I said to my friend with a smile, “That was{#blank#}5{#/blank#}I brought it then.”

On the return back from the ice cream store, I tried to get water to go, in case he {#blank#}6{#/blank#}(may) be still there. They only had mineral water and coconut water there, something he probably disliked. It turned out he was no longer there, though.

    My friend and I talked about keeping water{#blank#}7{#/blank#} (bottle) on hand in our vehicles and socks with added positive statement notes. This way, we give away {#blank#}8{#/blank#} (use) things{#blank#}9{#/blank#}are truly helpful. We both like the idea and these things will {#blank#}10{#/blank#} (prepare) soon.

    With the new term {#blank#}1{#/blank#} (approach）, Bertha Berger struggled to put on her blue jeans. She stepped on the bathroom scale（秤）. She had never seen such a high number on the little scale, so she decided to change. That day she threw out all the junk food in her fridge and went grocery shopping,{#blank#}2{#/blank#} (determine）to lose weight; she bought low, fat versions of all her favorite foods. She had two low - sodium（钠）bacon {#blank#}3{#/blank#}（sandwich）with a diet soda for lunch. The food contained over 1, 200 calories but had very little salt. For dinner she ate two turkey burgers with reduced - fat cheese{#blank#}4{#/blank#}she had received over 2, 000 calories, Bertha felt that she needed a reward. Then for dessert she ate one low- calorie ice - cream sandwich. And {#blank#}5{#/blank#} bed she ate a bag of baked potato chips, which she thought were{#blank#}6{#/blank#}（healthy）than normal chips, even if they had {#blank#}7{#/blank#} (rough) the same amount of calories. She dipped them in low - fat cream cheese. Bertha{#blank#}8{#/blank#}（consume）around 6,500 calories that day, but she felt skinny. When she woke {#blank#}9{#/blank#}the next morning, she stepped on the scale. She couldn't wait to see how {#blank#}10{#/blank#}(success）her diet had been.

    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.