—Not yet. It {#blank#}1{#/blank#}(paint)at present.

    The way we cook is important. In many countries, the two choices are {#blank#}1{#/blank#}(nature) gas or electric ­powered stoves.

    The World Health Organization warns that millions of people {#blank#}2{#/blank#}(suffer) from indoor air pollution at present time, which results from the use of {#blank#}3{#/blank#}(danger) fuels and cook­ stoves in the home.

    WHO officials say nearly three billion people are {#blank#}4{#/blank#}(able) to use clean fuels and technologies for cooking, heating and lighting. As a result, more than seven million people die from exposure to indoor or outdoor air pollution each year. Most of the deaths are in {#blank#}5{#/blank#}(develop) countries, such as India, China and Latin American countries.

    WHO officials say opening a window or door {#blank#}6{#/blank#}(let) out the harmful air will not correct the situation. {#blank#}7{#/blank#}will only pollute the outdoors.

    Nigel Bruce, {#blank#}8{#/blank#} is a professor of Public Health at the University of Liverpool, says researchers are developing good cook­stoves and other equipment to burn fuels {#blank#}9{#/blank#} a more efficient way.

    But, this is just a start. It is urging developing countries to use {#blank#}10{#/blank#}(clean) fuels and increase access to cleaner and more modern cooking and heating appliances (用具).

    My name is Tabitha,a 36-year-old mother living with my three{#blank#}1{#/blank#}(kid) in West Tennessee.I{#blank#}2{#/blank#}(lose) my job a couple of weeks ago and I am still searching for work now.The town{#blank#}3{#/blank#}I live is quite small and finding a job here has proven to be a major task.

    Since leaving my last job,I have found that it's{#blank#}4{#/blank#}(difficult) to make myself employed again than I expected.I have become a full-time homemaker{#blank#}5{#/blank#}(take) care of my motherly duties as well as housework.Apart from caring for my children and taking care of the house,I am still busy looking for part-time and full-time{#blank#}6{#/blank#}(employ) to help my family financially.I{#blank#}7{#/blank#}(frequent) visit our local career center and search online if I have very little free time.

    To be frank,I admit that being unemployed is stressful.I usually find myself lying awake at night and wondering{#blank#}8{#/blank#}I'm going to support my family if I cannot find{#blank#}9{#/blank#}job.In my inner heart,I never think about giving up.Having devoted much effort to my job-hunting,I believe it will pay off one day.Therefore,I will continue to search until I find one that allows me{#blank#}10{#/blank#}(provide) an income for my family.

    China has once again proved its{#blank#}1{#/blank#} (able)to change the world with the“new four great inventions”：high-speed railways，electronic payments，shared bicycles and online shopping．

    They're related to China's high-tech innovation(创新){#blank#}2{#/blank#} has improved the quality of people's lives，according to a survey{#blank#}3{#/blank#} (make)by the Belt and Road Research Institute of Beijing Foreign Studies University．

    “My wallet is no longer in use．I can buy and eat whatever I want simply with a fingertip on my phone，”said{#blank#}4{#/blank#} university student，adding that“even pancake sellers are using mobile payment．

    The bikes{#blank#}5{#/blank#} (them)are not new，but the operating model of bike-sharing {#blank#}6{#/blank#}base)on satellite navigation system，mobile payment，big data and other high technologies．

    China has entered a new innovative era，thanks to the large amounts of capital China has invested in{#blank#}7{#/blank#} (encourage)innovation，said Bernhard Schwartlander，WHO Representative in China．

    {#blank#}8{#/blank#} is increasingly clear that China is innovating and no longer copying Western ideas．This is{#blank#}9{#/blank#} (especial)true in mobile，where China is leading in many ways such as…social messaging app WeChat，she said．This is partly because China skipped over the PC era and went directly to mobile．China has the {#blank#}10{#/blank#} (large)mobile use in the world．

    We walked inside a museum in Garden City and looked around, eager {#blank#}1{#/blank#} (meet) Kobie Boykins, a NASA engineer. He helped to design the Mars rover (探测器) Curiosity, {#blank#}2{#/blank#} is still exploring to this day.

    In a big presentation room, Boykins {#blank#}3{#/blank#} (talk) about the team's newest rover, Mars 2020. We asked him if the new rover would be {#blank#}4{#/blank#} most complicated one he and his team {#blank#}5{#/blank#} (make) so far. He told us that most of the engineering would be the same. However, the rover is still more {#blank#}6{#/blank#} (advance) and will be able to get more accurate test {#blank#}7{#/blank#} (result).

    When Boykins finished his presentation, some people brought him into another room where we would interview him. We asked if he felt he was {#blank#}8{#/blank#} a lot of pressure at work. He told us that he {#blank#}9{#/blank#} (actual) put a lot of pressure on himself. He said that working on the spacecraft wasn't putting him in that position, but he still wanted to make {#blank#}10{#/blank#} perfect.

Body language is one of {#blank#}1{#/blank#} most powerful means of communication, often even more powerful than {#blank#}2{#/blank#}(speak) language. People around the world show all kinds of feelings, wishes and attitudes that they might never speak aloud. {#blank#}3{#/blank#} is possible to "read" others around us, even {#blank#}4{#/blank#}they do not want us {#blank#}5{#/blank#}(catch) their unspoken communication. Of course, body language can be misread, but many{#blank#}6{#/blank#}(gesture) and actions are universal. The most universal {#blank#}7{#/blank#}(face) expression is, of course, the smile—its function is to show happiness and put people {#blank#}8{#/blank#} ease. It does not always mean that we are {#blank#}9{#/blank#}(true) happy, however. Smiles around the world can be false, hiding other feelings like anger, fear or worry. There {#blank#}10{#/blank#}(be) unhappy smiles, such as when someone "loses face" and smiles to hide it. However, the general purpose of smiling is to show good feelings.