C. report a new finding of the widow species

　　D. warn readers against the brown widow

　　61．From the passage we can conclude that________.

　　A．brown widows are spreading northward

　　B．the brown widow originated from Africa

　　C．brown widows now can be found in all countries

　　D．there used to be no brown widows in North America

　　62．The third paragraph is mainly about________.

　　A. the brown widow's web building

　　B. the characteristics of the brown widow

　　C. the habitat preferences of the brown widow

　　D. the brown widow's threaten to human beings

　　63．It can be inferred that________.

　　A. brown widows can be killed with any farm chemicals

　　B. at present people can only control brown widow spiders

　　C. the brown widow has more poison than the black widow

　　D. victims bitten by the brown widow needn't see the doctor

　　C

　　(2017·吉林市一模)

　　Are you stressed out, scared or worried all the time? Do you avoid going to certain places, seeing friends or doing certain things because of your worries? Do your worries keep you awake at night? If you've answered yes, you may be suffering from anxiety.

　　Anxiety is a normal and necessary part of life. Anxiety is your brain's way of telling you about danger. It is anxiety which helps you jump out of the way if a car is speeding towards you. But if it gets out of hand, anxiety can get in the way of your getting on with life and can become a real problem. If this is the case for you, treatment may be a helpful way for you to get your anxiety under control.

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