问题
选择题
与太阳活动无关的现象是
A．极光
B．极昼极夜
C．地面短波通信中断
D．地球磁场受到干扰
答案
答案：B
题目分析：太阳活动对地球的影响：使无线电短波通信产生中断、地球磁场受到干扰、出现极光现象、对地球气候的影响等。正确答案选B。
点评：本题难度较小。要求学生熟练掌握太阳活动对地球的影响。
搜题请搜索小程序“爱下问搜题”
与太阳活动无关的现象是
A．极光
B．极昼极夜
C．地面短波通信中断
D．地球磁场受到干扰
答案：B
题目分析：太阳活动对地球的影响：使无线电短波通信产生中断、地球磁场受到干扰、出现极光现象、对地球气候的影响等。正确答案选B。
点评：本题难度较小。要求学生熟练掌握太阳活动对地球的影响。
Cloze (15分) Directions: for each blank in the following passages there are four words or phrases marked A, B, C, and D. Fill in each blank with the word or phrase that best fits the context. If you travel around the world, you will be surprised to find just how different the foreign customs can be __50__ your own. A visitor to India would do well to remember that people there __51__ it impolite to use the left hand for passing food at table. The left hand is supposed to be __52__for washing yourself. Also in India, you might __53__a man obviously shaking his head at another and assume that he is disagreeing. But in many __54__ of India a shake of the head is a gesture that shows agreement or acceptance. Nodding your head when you are offered a __55__ in Bulgaria is likely to leave your thirsty. In that country you shake your head to indicate “yes”—a nod indicates “no”. The Arabs are __56__ for their hospitality (好客). At a meal in the Arabic countries, you will find that drinking vessel (器皿) is filled again __57__again as soon as you drain it. The way to __58__ that you have had enough is to take the cup or glass in your hand and give it a little shake from side to side or place your hand over the top. In Europe it is quite usual to __59__ your legs when sitting talking to someone, even at an important meeting. Doing this when meeting an important person in Thailand, however, could __60__ him or her unhappy. It is considered too informal an attitude __61__ such an occasion. Also when in Thailand you are __62__ supposed to touch the head of an adult – it’s just not done. In Japan, it is quite usual for __63__ to plan evening entertainment for themselves and leave their wives at home. In Europe such attitudes are disappearing. Customs vary from country to __64__. Visitors may be at a loss as to what to do in a foreign environment. In such circumstances, the rule is: When in Rome, do as Romans do.
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