How to improve your English speaking skills?Here are some tips.

    Find native English speakers.Talking to actual native speakers is the most effective way to improve your English skills.Your progress will be greater if you use this way.

    Slow down. If you want to be understood,slow down.If you speak more clearly,your listeners can understand you better.

    Record yourself.Though we hear ourselves all the time,we don't quite know what we sound like.So record yourself!And then you can focus on what you need to improve.

    Take different classes.One class is good.But if you can take more than one class—of different styles—that's even better.

    Speak English at home.Make a plan to speak it at home.Talk to yourself in English.You can also narrate your actions.While you're washing the dishes,say what you're doing,thinking,or feeling.It keeps your brain thinking in English.

    Create opportunities.English speakers are everywhere.You have to find them. You can call up an English hotline.Call a phone company and make small talk about phone plans.Start a blog.Get into English chat rooms.There are ALWAYS opportunities to be found.

2010年，为推进太原市交通基础设施建设，修建太行路（东中环路），太原市政府向某世界组织贷款1.5亿美元。该组织是（   ）

欧洲的居民以    (    )

写出图中编号仪器的名称：

①____，②____，③____，④____．

某同学用高锰酸钾制取氧气，选择了A装置，实验结束时发现水槽中的水变成了浅紫红色，你认为产生该现象的原因可能是____．实验室用氯酸钾制取氧气，要收集一瓶比较纯净的氧气，收集装置选____（填序号，下同），若要收集一瓶比较干燥的氧气，收集装置____，写出该反应的符号表达式____．已知实验室可用加热无水醋酸钠和碱石灰的固体混合物来制取甲烷．发生装置选____．用E装置收集气体时，当导管口出现____时，才开始收集；当观察到____时，说明气体已经收满了．