Increasingly, Americans are becoming their own doctors by going to diagnose their symptoms, order home health tests or medical devices, or even self-treat their illnesses with drugs from Internet pharmacies(药店).Some avoid doctors because of the high cost of medical care, especially{#blank#}1{#/blank#} they lack health insurance. Or they may stay away because they find it{#blank#}2{#/blank#}(embarrass) to discuss their weight, smoking, alcohol consumption or couch potato habits. Patients may also fear what they might learn about their health, or they distrust physicians because of negative {#blank#}3{#/blank#} (experience) in the past. But{#blank#}4{#/blank#}(play) doctor can also be a deadly game.

Every day, more than six million Americans turn to the Internet{#blank#}5{#/blank#}medical answers— and most of them aren't nearly sceptical enough of what they find. A 2002 survey by the Pew Internet &American Life Project found that 72 percent of those{#blank#}6{#/blank#}(survey) believe all or most of what they read on health websites. They shouldn't look up “headache” and the chances of finding {#blank#}7{#/blank#}(rely) and complete information, free from a motivation for commercial gain,{#blank#}8{#/blank#} (be) only one in ten, reports an April 2005 Brown Medical School study. Of the 169 websites the researchers rated, only 16 scored as “high quality”. Recent studies found faulty facts about all sorts of other disorders, causing one research team to warn that a large amount of incomplete, inaccurate and even dangerous{#blank#}9{#/blank#} (inform) exists on the Internet.

    The problem is most people don't know the safe way to surf the Web. “They use a search engine like Google, get 18 trillion choices and start clicking. But that's risky, because almost anybody can put up a site that looks authoritative ( 权威的), so it's hard to know if what you're reading is {#blank#}10{#/blank#}(reason) or not,” says Dr. Sarah Bass from the National Cancer Institute.

    Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.

    Is Climate Change Consuming Your Favorite Foods?

    Due to climate change, the world's endangered lists are no longer just for animals. We may not only need to adapt ourselves to living in a warmer world but a {#blank#}1{#/blank#} (tasty) one as well.

    As the increased amount of carbon dioxide in the air linked to global warming {#blank#}2{#/blank#} (continue) to affect weather, we often forget that they are also impacting the quantity, the quality, and the growing locations of our food. Some foods have already felt the impact while {#blank#}3{#/blank#} may even become scarce within the next 30 years.

    Whether or not you try to limit yourself {#blank#}4{#/blank#} one cup of coffee a day, the effects of climate change on the world's coffee-growing regions may leave you little choice.

    Rising temperatures and unpredictable rainfall patterns are reported to have been threatening coffee plantations in South America, Africa, Asia, and Hawaii. The result? Significant cuts in coffee yield.

    According to organizations like Australia's Climate Institute, half of the present coffee-producing areas {#blank#}5{#/blank#} (estimate) not to be suitable by the year 2050, if current climate patterns continue.

    With temperatures continuously rising, oceans are absorbing some of the heat and undergoing warming of their own, {#blank#}6{#/blank#} (cause) a decline in fish population, including in lobsters that are cold-blooded creatures, and in salmons (鲑鱼) {#blank#}7{#/blank#} eggs find it hard to survive in higher water temperatures. Warmer waters also encourage some poisonous marine bacteria to grow and lead to illness in humans whenever {#blank#}8{#/blank#} (take) with raw seafood, like oysters.

    And how about that satisfying “crack” which you get when you are eating crabs and lobsters? It could be silenced {#blank#}9{#/blank#} shellfish have been struggling to build their calcium carbonate (碳酸钙) shells, which is a result of ocean acidification.

    Even worse is the possibility {#blank#}10{#/blank#} we will have no seafood to enjoy at all. In a 2006 Dalhousie University study, scientists predicted that if over-fishing and rising temperature trends continued at their present rate, the world's seafood stocks would run out by the year 2050.

    That Beijing, together with Zhangjiakou, succeeded in getting the chance to host the 2022 Winter Olympic Games, speeds up the development of Zhangjiakou City. Word came{#blank#}1{#/blank#}the Beijing-Zhangjiakou high-speed railway,{#blank#}2{#/blank#}(locate) in North China, is currently under construction, and{#blank#}3{#/blank#}(expect) to be completed by 2020 in preparation for the cities to host the 2022 Winter Olympics. Starting from Beijing North Railway Station, heading west through the Great Wall three times in the capital's territory, the project is a big challenge,{#blank#}4{#/blank#}designers say the explosions needed to dig the tunnels will not have an impact on the structure. The line has a{#blank#}5{#/blank#}(long) of 174 km as a double tracked passenger dedicated line, with ten stations situated along its route. Having a{#blank#}6{#/blank#}totally) investment of 31.17 billion Yuan ($5 billion), the trip between the two cities will only take 40 minutes, with the train{#blank#}7{#/blank#}(travel) at an average of 250 km/h. According to the plan, the high-speed railway will build two branch lines—one is to Yanqing Station and the other{#blank#}8{#/blank#}Taizicheng of Chongli,{#blank#}9{#/blank#}the Olympic village lies. The full railway, which includes 70-kilometer section through Beijing, will be completed in four and{#blank#}10{#/blank#}half years.

Sun Yang wins men's 400m freestyle in FINA Champions Swim Series on January 15 in Shenzhen. "My 400m free remains smooth all the time, showing that my training is{#blank#}1{#/blank#}(effect). My goal this year is{#blank#}2{#/blank#} (win) at the Olympic Games," said Sun, who lost to Rapsys {#blank#}3{#/blank#}0.03 in 200m freestyle on Tuesday. The world top-class athlete {#blank#}4{#/blank#}(perfect) showed his dominant power in the 400m freestyle event in front of all his home fans, {#blank#}5{#/blank#} (suggest) that he is aiming high for the upcoming Tokyo Olympic Games.

Liu Xiang bagged her second gold medal in the 50m freestyle in 24. 04. "I got{#blank#}6{#/blank#} cold after I arrived here three days ago, {#blank#}7{#/blank#} I did not expect to win with a time equaling my personal best," said Liu. So far, China {#blank#}8{#/blank#} (collect) 9 gold medals as the biggest winner.

According to FINA official website, the brand-new "FINA Champions Swim Series" is since 2019 a circuit {#blank#}9{#/blank#} (gather) the top athletes of the sport, and it has an original {#blank#}10{#/blank#}(compete) format including finals with only four swimmers.

Coffee is probably world's least expensive success power tool to increase focus, drive and even the life span. {#blank#}1{#/blank#}(fortunate) we may not be enjoying its benefits or pleasure too much longer. According to ecologists，there is a good chance {#blank#}2{#/blank#} the varieties of coffee that we drink today {#blank#}3{#/blank#}(be) extinct in 20 or 30 years. The problem, of course, is the pace of climate change.

Coffee is a crop that is only grown in a thin band {#blank#}4{#/blank#}(call) the "coffee belt" close to equator(赤道), which is extremely vulnerable(易受...伤害的) to climate change. If the air is too hot {#blank#}5{#/blank#} too cold, it prevents the growth of coffee plant. Climate change also creates {#blank#}6{#/blank#}(environment) stress, which spreads pests and plant diseases. Almost all the coffee grown in the world today is one of two species, arabica or robuasta, both of {#blank#}7{#/blank#} might be wiped out in this way. There are other species existing only in Ethiopia, {#blank#}8{#/blank#}country that climate change is happening. In other words, climate change is eating away the root source that we might turn to {#blank#}9{#/blank#}replacement species.

What to do? Well, take the time {#blank#}10{#/blank#}(enjoy) each cup of coffee you drink.