题干

为探究电磁铁的磁性跟哪些因素有关,小丽同学作出以下猜想:

猜想A:电磁铁通电时有磁性,断电时没有磁性

猜想B:通过电磁铁的电流越大,它的磁性越强

猜想C:外形相同的螺线管,线圈的匝数越多,它的磁性越强

为了检验上述猜想是否正确,小丽所在实验小组通过交流与合作设计了以下实验方案用漆包线(表面涂有绝缘漆的导线)在大铁钉上绕制若干圈,制成简单的电磁铁.如图所示的从左到右a、b、c、d为实验中观察到的四种情况。

根据小丽的猜想和实验,完成下面填空:

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    Tips to Increase Your Productivity

    Want to get more done in your day? Of course you do. ____The good news is that everyone can increase the amount of tasks they accomplish in a day. Here are some tips to help you have a more productive day.

    Make a plan for your day. Make sure you know how you want your day to go in advance, even before you start. ____ To work best, create the next day's plan the night before so that every morning you spend time performing, not planning.

    Break large tasks down into bits accomplished easily. Do you have a large project that's just so big that you keep putting it off? Or maybe you're just unsure of where to begin, so you put it off. ____Therefore, you will feel a sense of accomplishment as you check the items of your list.

    Always set your priorities (优先事项). ____Figure out what must be done, do that first and rank the rest of your work according to importance. If you don't get to the items at the end of your list, it won't be a big problem, and you can do them another time.

    ____ If you are the most productive in the morning, that's when you should hit it hard and do as much as you can. If you work better in the afternoon, take care of some things like emails in the morning and then accomplish the important projects in the afternoon. Keep on top of your work habits, and you'll be more productive.

A. Reward yourself if you are productive.

B. This can provide you a roadmap for the day.

C. Be aware of when you are the most productive.

D. It's tough to meet depressed people who are productive.

E. It's important to accomplish the most important tasks first.

F. A good way is to break the project down into more manageable ones.

G. To stay competitive in any industry, you need to improve your productivity.