¡@¡@First, some websites state that radiation from computers is responsible for a range of health problems, including insomnia and headaches. On this note, it is important to keep in mind that there are multiple types of radiation. While some are indeed harmful, the amount of radiation emitted by computers is not enough to damage human health.
¡@¡@Next, regarding the question of whether cacti can actually absorb radiation from a computer, the simple answer is no, they can¡¦t. This is because radiation from a computer would be emitted in all directions. Therefore, a cactus positioned on one side of your computer will do nothing to stop radiation from traveling straight towards you from the front of the machine.
¡@¡@In summary, cacti cannot prevent you from absorbing radiation from your computer. However, such radiation will actually do you no harm. Having said that, keeping cacti in your home provides a number of real advantages that can help you live a happier and healthier life.
1. What does the word ¡§questionable¡¨ in the first paragraph most likely mean?
(A) Reliable.
(B) Doubtful.
(C) Hard-to-answer.
(D) Easy-to-understand.
2. How are cacti helpful for human health?
(A) They help people fall asleep.
(B) They are good for your eyes.
(C) They absorb radiation.
(D) They raise oxygen levels.
3. How does the author feel about the claim that cacti can block harmful radiation?
(A) It needs further investigation.
(B) It is true and in urgent need of attention.
(C) It is inaccurate and the facts should be clarified.
(D) It should be valid because it has been published online.
4. If a plant could absorb radiation from computers, where should one place it to effectively lower one¡¦s exposure to radiation?
µª®×¡G 1. B 2. D 3. C 4. B
Words for Reference
¡» cacti [£¿kæktaÈþ ] n. ¥P¤H´x¡]½Æ¼Æ¡^
cactus [£¿kæktəs ] n. ¥P¤H´x¡]³æ¼Æ¡^
¡» emit [Èþ£¿mÈþt ] vt. µo¥X¡A´²µo
¡» fact-checking [£¿fækt͵tÈõÈ÷kÈþÈü ] n. ¨Æ¹ê¬d®Ö¡]¤£¥i¼Æ¡^
¡» insomnia [ Èþn£¿sɑmnÈþə ] n. ¥¢¯v
¡» valid [ £¿vælÈþd ] a. ¦³®Ú¾Úªº
Phrases for Reference
¡» on this note¡@¡@»¡¨ì³o¸Ì
¡» having said that¡@¡@¾¨ºÞ¦p¦¹
Practical Phrases
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• Sugary drinks are responsible for many cases of diabetes.
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• Keep in mind that without hard work, you will get nowhere.
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5. In summary, S + V¡@¡@ Á`µ²¨Ó»¡¢AÁ`¦Ó¨¥¤§¡A¡K¡K
• We went to Mayday¡¦s concert last week. In summary, it was an auditory and visual feast.
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6. questionable [£¿kwÈ÷stÈõənəb! ] a. ȱoÃhºÃªº¡A¦³ºÃ°Ýªº
• It is highly questionable whether Larry will pass the test.
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12. clarify [£¿klærə͵faÈþ ] vt. ¼á²M¡AÁ¿²M·¡
• The politician was asked to clarify his position on the issue.
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13. exposure [ Èþk£¿spoʒɚ ] n. ±µÄ²¡A¼ÉÅS
• Constant exposure to English speakers is the most effective way to improve English.
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