Unit 1 Science and Scientists Learning About Language第1课时 课件-2023-2024学年高中英语人教版（2019）选择性必修第二册

Unit 1 Science and Scientists Learning About Language Period 1 Warming-up Can you guess the meaning of this word? 肺尘病 a lung disease caused by inhaling very fine ash and sand dust Pneumonoultramicroscopicsilicovolcanoconiosis Pneumono/ultra/micro/scopic/silico/volcano/coni/osis of lung肺的 small微小的 What do the prefixes “re-/dis-/micro-/trans-” mean? Can you think of more words beginning with these prefixes? What about the suffixes “-ory/-ion/-ial/-ology”? of viewing or observing观察或注意的 of silicon硅的 mountain that releases lava and ash 火山的 of dust尘土的 state of a disease疾病 to an extreme degree非常 Prefix Words Meaning Suffix Words Meaning re- -ory dis- -ion micro- -ial trans- -ology again; back away; not; separate across; beyond small remove replace reuse discover disable disappear microscope microwave microphone transform transport transplant a place for; relating to or involving a verbal action noun, quality; state of being related to; like study/science of ... contradictory advisory compulsory infection action relation substantial partial financial epidemiology biology sociology Warming-up Find the words from the previous pages with the following prefixes or suffixes. Then add two words for each prefix or suffix, and explain their meanings. 1. contradictory adj. 相互矛盾的；对立的；不一致的 involving, causing, or constituting a contradiction e.g. Contradictory predictions regarding stock prices were of no help to investors at all. 【拓展】contradict v. 反驳；相矛盾；驳斥；相抵触 e.g. Your actions contradict your words. 【词形变化】 contradict (v.)  contradiction (n.)  contradictory (adj.) Language points 2. infection n. 传染；感染；传染病 the act of process of causing or getting a disease; an illness that is caused by bacteria of a virus and that affects one parts of the body e.g. The measures are taken by the government to protect the whole residents against this infection. 【拓展】infect v. 传染，使感染；使感染（某种感情），影响 e.g. It is possible for the disease to infect others through direct or indirect c