causes a variety of problems.
(4) ___ (a) We cannot see bacteria or viruses without a microscope.
___ (b) Many micro-organisms are invisible to the unaided eye.
(5) ___ (a) Temperature affects water.
___ (b) At 0°C water freezes; at 100°C it vaporizes.
Essay Writing Practice
Exercise 1
Write one or more sentences that give examples for the following general statements (1-3).
(1) There
carry up to a ten year prison sentence, and prohibits the development or possession of phishing kits with intent to commit fraud.
iv. Society and Environment
Although most online phishing may seem like a trivial topic, many are still oblivious to the subject. According to 2007 survey conducted by PayPal , an online payment provider, in UK, about 46% of the people are unaware of what phishing
1. Listening Comprehension
1~3) Listen to the following and answer the question.
Breaking a mirror brings bad luck for seven years. This dates back to times when it was believed our reflection was a representation of our souls. Damaging the reflection is damaging the soul. If we manage to break a mirror, there are remedies that will reverse the fortune of the damaged soul...(이하 지문
1. Listening Comprehension
1~3) Listen to the following and answer the question.
Pre-history
Prior to the release of bitcoin there were a number of digital cash technologies starting with the issuer based e-cash protocols of David Chaum and Stefan Brands. Adam Back developed hashcash, a proof- of-work scheme for spam control. The first proposals for distributed digital scarcity based cryp
Start the lesson with greetings. Ask how are they doing today and also start conversation by using ‘social’ languages about what the students did the previous day to create an English atmosphere, it makes more interesting class. Students can practice real English. Using social language is essential as many textbooks do not explore slangs, idioms and other terms that native English speakers ma