More recent studies using molecular methods and a retrievable enamel chip model have revealed a new line-up of initial colonizers though the early dental plaque microflora varies at subject-specific basis (Diaz et al., 2006; Kolenbrander et al., 2005). In initial plaque on the chip at four to eight hours, Streptococcus spp. was dominant while Veillonella, Gemella, Prevotella, Niesseria, Actinomyces and Rothia were also frequently found. Among streptococci, S. oralis, S. mitis, S. infantis, S. sanguinis, S. parasanguinis, S. gordonii, S. cristatus and S. bovis were found in the early dental plaque. Although this bacterial community can be given substrates by bacteria which synthesize EPS in sucrose-dependent manner,. | Clive Oxenden Christina Latham-Koenig 1000 0 NEW New ENGLISH FILE Beginner Student s Book Contents Grammar Vocabulary Pronunciation 4 Hello verb be and you numbers 0-10 word stress h so and d 6 Where are you from verb be he she it countries sentence stress ì and ai 8 Q We re from the USA. We re American. verb be we you they negatives all persons nationalities numbers 11-20 word stress e i and 10 Practical English The alphabet People in the street What s your name How do you spell it Where are you from 12 Revise Check What do you remember what can you do 14 What s in your bag singular and plural nouns a an the small things z and s plural endings 16 Family and friends possessive adjectives possessive s people and family ỗ A and 9 18 Q A man s car or a woman s car adjectives colours and common adjectives ae ei cư and oi 20 Practical English Personal information People in the street Do you have brothers and sisters How old are they 22 Revise Check What do you remember What can you do 24 A bad hair day present simple I and you common verbs 1 u w and v linking 26 What do you have for breakfast present simple we you they food and drink word stress tj7 ds and g 28 Q He speaks English at work present simple he she it jobsand places of work 3rd person s word and sentence stress 30 Practical English Whattimeisit People in the street What do you do Do you like it What time do you start and finish 32 Revise Check What do you remember What can you do 34 Do you like mornings adverbs of frequency present simple a typical day sentence stress 36 Life at the top of the world word order in questions question words common verbs 2 es d ao and j 38 Q You can t park here can can t permission and possibility common verbs 2 sentence rhythm 40 Practical English How much is it People in the street Where do you usually have lunch What do you have How much is it 42 Revise Check What do you remember What can you do Grammar Vocabulary Pronunciation 44 Before they were famous. past simple be in at
