人教版（2019）选择性必修第二册Unit 1 -Science and Scientist 词汇课件（42张ppt）

(共42张PPT)
UNIT 1
SCIENCE AND SCIENTISTS
Learning objectives
To practice the vocabulary.
To learn to use predicative clauses.
To make sentences using predicative clauses.
n.
前缀
n.
后缀
01
Find the words from the previous pages with
the following prefixes or suffixes.Then add
two more words for each prefix or suffix,and
explain their meanings.
世界上最长的英文单词
pneumonoultramicroscopicsilicovolcanoconiosis
['nju:monou,Altro,maikras'kopik'silikavol'keinokounrousis]
Afix词缀
pneumono-.(of lung肺的)
ultra-(beyond越过)
micro--(very small极小的)
scopic-(of viewing or observing观察或注意的)
silico-(of silicon硅的)
volcano-(mountain that releases fire and ash火山的)
coni-(koni,of dust尘土的)
osis-(forming the name of a disease表示疾病)
[医]肺尘病，矽肺病（更准确来说是火山的灰尘引起的肺尘病，矽肺病）
Affix词缀
Affix
Meaning
Examples
Change
re-
recover,revise,react,
again
retell,recall,reunite
prefix
前缀
dis-
not
discover,disappear,
dislike,disable,
meaning
disappoint
micr
small
microsoft,microwave,
0-
microphone,
microscope
complete
trans
transform,
change;
transplant,transport,
across;
transfer