TAILIEUCHUNG - New English File Pre-Intermediate (2005) SB

The biological changes underlying the transition process from gingival health to early inflammatory changes involve local increase in vascular permeability, edema and the recruitment and activation of polymorphonuclear neutrophils (PMN) (Delima and Van Dyke 2003). Acquired immune response becomes involved once antigen-presenting cells interact with immunocompetent cells, such as T and B lymphocytes, leading to the expansion of antibody-secreting plasma cells and the development of the chronic lesion (Gemmell and Seymour 2004). Bacterial–host interactions at the biofilm–periodontium interface trigger the synthesis of cytokines and other inflammatory mediators that promote the release of enzymes and bone-associated molecules that finally induce the alterations of the connective tissue metabolism and the destruction. | Clive Oxenden Christina Latham-Koenig Paul Seligson 100 NEW New ENGLISH FILE Pre-intermediat Student s Book elt englishfile pre-intermediate OXFORD Contents Grammar Vocabulary Pronunciation 4 Who s who word order in questions common verb phrases classroom language vowel sounds the alphabet 6 r Who knows you better present simple family personality adjectives third person and plural -s 8 At the Moulin Rouge present continuous the body prepositions of place vowel sounds 10 El The Devil s Dictionary defining relative clauses ơperson thing which. expressions for paraphrasing like for example etc. pronunciation in a dictionary 12 Practical English At the airport 13 Writing Describing yourself 14 Revise Check What do you remember What can you do 16 Right place wrong time past simple regular and irregular verbs holidays ed endings irregular verbs 18 A moment in time past continuous prepositions of time and place at in on lol 20 Fifty years of pop questions with and without auxiliaries question words pop music w and 11 22 One October evening so because but although verb phrases the letter Ớ 24 Practical English At the conference hotel 25 Writing The story behind a photo 26 Revise Check What do you remember What can you do 28 Where are you going going to present continuous future arrangements look after for etc. sentence stress 30 The pessimists phrase book opposite verbs contractions will won t o and àọ 32 Q I ll always love you will 1 won t promises offers decisions verb back word stress two-syllable words 34 1 was only dreaming review of tenses present past and future verbs prepositions sentence stress 36 Practical English Restaurant problems 37 Writing An informal letter 38 Revise Check What do you remember What can you do 40 From rags to riches present perfect experience ever never present perfect or past simple clothes vowel sounds 42 Family conflicts present perfect simple yet just already verb phrases h j and dy 44 Q Faster faster comparatives as.

• Tiếng Anh thương mại
• Future Potentials
• Natural Fiber Polymer
• Composites Technology Applied
• Recovery and Protection
• Tropical Forests
• Industrial and Urban
• period relative
• pessimistic beliefs