Not all memories are sweet. Some people spend all their lives trying to forget bad experiences.

    Now American researchers think they are close to developing a pill, {#blank#}1{#/blank#} will help people forget bad memories. The pill is designed {#blank#}2{#/blank#} (take) immediately after a frightening experience. They hope it might reduce, or {#blank#}3{#/blank#} (possible) erase (抹去) the effect of painful memories.

    In November, experts tested a drug on people in the U.S. and France. The drug stops the body from {#blank#}4{#/blank#} (release) chemicals that fix memories in the brain. So far, the research {#blank#}5{#/blank#} (suggest) that only the emotional effects of memories may be reduced, not that memories are wiped out. They are not sure to the degree people's memories are affected.

    The research has caused a great deal of {#blank#}6{#/blank#} (argue). Some think it is {#blank#}7{#/blank#} bad idea, while others support it. Supporters say it could lead to pills which prevent or treat soldiers' troubling memories after war. They say that there are many people who suffer from terrible memories. {#blank#}8{#/blank#}, those who are{#blank#}9{#/blank#} the research say that maybe the pills can change people's memories and changing memories is very {#blank#}10{#/blank#} (danger) because memories give us our identity.

    My feelings about science have {#blank#}1{#/blank#} (complete) changed. The science teachers {#blank#}2{#/blank#} my new school are excellent and {#blank#}3{#/blank#} (friend). The science{#blank#}4{#/blank#} (facility) are very good with laboratories that have all the {#blank#}5{#/blank#} (late) equipment. Our chemistry teacher takes us to public science lectures about four times {#blank#}6{#/blank#} term, which are always interesting, because the lecturers are famous at {#blank#}7{#/blank#} (them) area of science. In the last 20 years, seven Canadian scientists {#blank#}8{#/blank#} (win) the Nobel Prize. Now {#blank#}9{#/blank#} I'm becoming more and more interested in is physics and I want to study it at university. But my parents are {#blank#}10{#/blank#} (astonish), as they always thought I would become an English teacher.

    Travelling around the Sydney district is a wonderful experience.

    The sightseeing options are{#blank#}1{#/blank#}(end), but most travelers begin on the harbor at the Sydney Opera House. Known as one of the wonders of the world, it is {#blank#}2{#/blank#}photographer's dream.

    There is a huge {#blank#}3{#/blank#}(choose) of accommodations available in the city and its surrounding area. Darling Harbor is famous for its restaurants and four-star hotels. Under the famous Sydney Harbor Bridge is the Rocks shopping district, which {#blank#}4{#/blank#}(call) “the heaven of shoppers”. You can spend at least a half day{#blank#}5{#/blank#} (wander) through the alleys and side streets to take{#blank#}6{#/blank#}everything the shops offer. On the other side of harbor {#blank#}7{#/blank#}(lie) another must-visit spot, the Taronge Park Zoo. With an exciting collection of native animals, including lions and giraffes,{#blank#}8{#/blank#}is rare to find a zoo with a view of Darling Harbor and the city skyline.

    The Royal Botanic Garden is within walking distance of the Opera House, and is an absolutely perfect place for a picnic lunch. After lunch, take a walk to Sydney Tower,{#blank#}9{#/blank#}you can get 360-degree{#blank#}10{#/blank#}(forget) views of the city.

There has been a recent trend in the food service industry toward lower fat content and less salt．This trend，which was started by the medical community（医学界）{#blank#}1{#/blank#}a method of fighting heart disease，has had some unintended side{#blank#}2{#/blank#}（effect） such as overweight and heart disease—the very thing the medical community was trying to fight．

    Fat and salt are very important parts of a diet．They are required{#blank#}3{#/blank#}（process） the food that we eat，to recover from injury and for several other bodily functions．When fat and salt {#blank#}4{#/blank#}（remove） from food，the food tastes as if it is missing something．As {#blank#}5{#/blank#}result，people will eat more food to try to make up for that something missing．Even {#blank#}6{#/blank#}（ bad），the amount of fast food that people eat goes up．Fast food{#blank#}7{#/blank#}（ be） full of fat and salt； by {#blank#}8{#/blank#}（ eat） more fast food people will get more salt and fat than they need in their diet．

    Having enough fat and salt in your meals will reduce the urge to snack（吃点心） between meals and will improve the taste of your food．However，be {#blank#}9{#/blank#}（ care） not to go to extremes．Like anything，it is possible to have too much of both，{#blank#}10{#/blank#} is not good for the health．

Everywhere I look outside my home I see people busy on their high-tech devices, while driving, walking, shopping, even sitting in toilets. {#blank#}1{#/blank#}connected electronically, they are away from physical reality.

People {#blank#}2{#/blank#}(influence) to become technology addicted. One survey reported that "addicted" was the word most commonly used by people {#blank#}3{#/blank#}(describe) their relationship to iPad and similar devices. One study found that people had a harder time {#blank#}4{#/blank#}(resist) the temptation of social media than they did for sleep, cigarettes and alcohol.

The main goal of technology companies is to get people to spend more money and time on their products, not to actually improve our quality of life. They have successfully created a cultural disease. I see people {#blank#}5{#/blank#}(trap)in a pathological (病态的) relationship with time-consuming technology,{#blank#}6{#/blank#}they serve technology more than technology serves them. I call this technology servitude(奴役). I am referring to a loss of personal freedom and independence {#blank#}7{#/blank#} uncontrolled consumption of many kinds of devices that eat up time and money.

What is a healthy use of technology devices? That is the vital question. Who is really in charge of my life? That is what we need to ask {#blank#}8{#/blank#} if we are to have any chance of breaking up false beliefs about the use of technology. When we can live happily without using so much technology for a day or a week, then we can regain control and personal freedom, become the master of technology and discover what there is to enjoy in life free of technology. Mae West is famous for the wisdom that "too much of a good thing is wonderful." {#blank#}9{#/blank#} it's time to discover today's overused technology.

Richard Fernandez, an executive coach at Google acknowledged that "we can be swept away by our technologies," To break the grand digital connection, people must consider{#blank#}10{#/blank#} life long ago could be fantastic without today's overused technology.