
Thursday, December 4, 2008
Conversation class

Tuesday, December 2, 2008
Relative clauses
Relative clause
Defining clauses both that and which can be used with things
EXERCISE
- The woman whose hair is long and curly is the new secretary, Mrs. Chan.
- Nearly all the proposals that/which the committee put forward have been accepted.
- This is the book that/which has become a bestseller in recent years.
- Graduates who/that possess a strong academic background as well as good communication skills are favored by employers.
- Mosquitoes, which are small two-winged insects, can spread fatal diseases like malaria and dengue fever.
- The government officials to whom we spoke last week were completely unaware of the urgency of the matter.
- That horrible incident occurred in 1967, when I was still a baby.
- There’s a football match on television tomorrow that/which I think you shouldn’t miss.
- The firm has decided to introduce a new round of pay cuts, which will doubtlessly be greeted with discontent and hostility.
- The new MP3 player that/which is produced by Sony has many useful functions.
Monday, December 1, 2008
Preparation for fighting crime with science
Preparation for fighting crime with science
DNA database
- The Home Office report showed that 5.24% of the UK population now has a DNA profile held on the database.
- The number of crimes solved through DNA technology has quadrupled over the past five years.
- Police can now track down offenders by matching samples with other family member who may be on the database
Biometrics
- It is technologies to measure and analyze human body characteristics such as fingerprints, eye retinas and irises, voice patterns, facial patterns and hand measurements.
- 27 countries accepted that all passports must be contained a machine readable chip and a biometric identifier, such as a digital photograph of the holder. A passenger will look into a camera at border control and a computer will check the map of key points on the face with those recorded in the passport chip, confirming their identity.
- US military working in Iraq, Afghanistan, and Pakistan are already using portable iris enrolment and recognition devices to record and identify suspects.
Finger biometric systems can be problematic for people with feint prints, or wet or dry hands.
CCTV
- There are already 4.2million cameras trained in UK
- Between 150 and 300 million pounds per year is now spent a surveillance industry
- Only 3% of crimes were solved by CCTV
- Sometimes CCTV cameras was switched of, did not have a film in it, was pointing in the wrong direction
