Scientists estimate that plants and animals lived 3.5 billion years ago．( )A．as far asB．as many asC．as long asD．as old as 题目和参考答案——青夏教育精英家教网——

题目内容

19．Scientists estimate that plants and animals lived _____ 3.5 billion years ago．（　　）

A．

as far as

B．

as many as

C．

as long as

D．

as old as

分析科学家估计动植物三十五亿年前就生活在地球上了．

解答答案：C
as far as远达，只要；as many as多达；as long as只要，和…一样长；as old as和…一样大．句意表达的是时间，故选C．

点评介词用法灵活，搭配较多．学习时要注意积累，对常考的搭配结构要注意掌握．

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Researchers find willpower is like a muscle—it may get tired from over use. So, if it acts like a muscle, can it also be strengthened? The answer is YES. 1.

1. Ten minutes of reflection

Reflection will give you the fater results. 2. Researchers show that after just 2—3 days of practicing thinking for 10 minutes, your brain will be able to focus better, you will have more energy, and you aill be less stressed.

2. Work on your posture

Work on your posture for a 2-week period. Every time you catch yourself slouching(懒散), correct it by sitting up straight. This simple practice can vastly improve your perseverance.

3. Use your opposite hand

Select a chunk(块) of the day to use your opposite hand. 3. And from personal experience, if you aim for more than an hour, you will unnecessarily tire out your willpower muscle.

4. Correct your speech

Change your natural speech. 4. Again, it takes willpower to consciously go against your instincts. It doesn’t matter how you correct your speech, as long as you change natural speech habits.

To get started, select a chunk of the day to practice and choose the words you will change. Personally, I tried not using contractions during work hours and it worked very well.

Above are some effective ways to strengthen your perseverance. Do not try to do all at once. 5. You should start small and gradually build up as your muscles get stronger.

A. Training your willpower muscle is like training for a marathon.

B. This even includes resisting the urge to say “hello” instead of “hey”.

C. You will be more mentally strong.

D. With the right practice willpower can be strengthened.

E. It can make your brain focus and resist the urge to wander.

F. Be more conscious of your automic decisions.

G. It doesn’t need to be more than an hour in order to get results.

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