Unit 1 Learning about language 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 Build up your vocabulary 杨婷婷 1 Learning Objectives By the end of the lesson, I will be able to： analyse the qualities of John Snow as a scientist; learn some important words and expressions about science and scientists; master some skills of learning words and expressions. 2 TB P.4 Ex.1 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. Prefix Words Prefix Words Suffix Words Suffix Words re- micro- -ory -ial dis- trans- -ion -ology 3 Prefix Meaning Examples Change re- dis- micro- trans- again; back not small complete change; through, across reunite, review, restart, return, recall discover, disappear, dislike, disable microscope, microwave, microphone transform, transplant, transport meaning re + unite (v. 联合)  reunite (v.) – to unite again 再联合 ；重逢 4 Suffix Meaning Examples change -ory -ion -ial -ology of or relating to action or process having the characteristics of a branch of knowledge contradictory, advisory， compulsory infection, contribution, collection, reaction substantial, financial, official, commercial epidemiology, biology, physiology part of speech (词性) contradict (v. 反驳；相矛盾) + ory  contradictory (adj. 相矛盾的；对立的) Tip 4. understand the meanings and parts of speech of words according to prefix(es) and suffix(es). 5 link Circle the verbs used in the reading passage and find the preposition that can go with them. die of suspect ... of ... blame for link…to… subscribe to 6 Read the sentences and tell the meaning of the underlined phrases. Think about where we can use them. Many scientists subscribe to a few science magazines to keep up to date with the latest research news. John Snow subscribed firmly to the belief that cholera was caused by an infection from germs in food or water. If a person is suspected of an infection, his/her family members should be put in quarantine