仁愛版八年級英語上冊《Must we exercise to prevent the flu?》SectionD PPT課件，共45頁。
Warm up.
It is important to warm up before you exercise. You need to stretch your legs, arms, back and neck before you do any difficult activities like running.
vocabulary
equipmenr [ɪˈkwɪpmənt] n. 設(shè)備，器材
instead [ɪnˈsted] adv. 代替，反面
choose [tʃuːz] v. 選擇；挑選
energy [ˈenərdʒi] n. 經(jīng)理，活力，干勁
on the other hand 另一方面
instead of 代替
原文：and then your exercise will be fun instead of work.
1、instead adv. 代替，反面
instead 作副詞，意為“代替，而不是”，常用作狀語。例如：
He is tired. Let me go instead.
翻譯：______________________________
She never studies. ________, she plays tennis all day.
她從不學(xué)習(xí)，而是整天打網(wǎng)球。
【拓展】instead 和instead of 的辨析：
（1）instead是副詞，后面不接其他的詞，一般情況下可不譯出，通常放在句首或句末，在句首時(shí)常用逗號隔開，表示前面的事沒做，而做了后面的事。例如：
He didn’t go to school. Instead, he went to the cinema.
翻譯：______________________________
（2）instead of是介詞短語，意為“代替，而不是”，后面可以跟與前面并列成分相應(yīng)的名詞、代詞、動詞-ing形式等作為介詞賓語。例如：
He went to the cinema instead of going to school.
翻譯：______________________________
2、need v. 需要（實(shí)意動詞）
（1）need to do sth.需要做某事
e.g I need to study hard for the exam. 翻譯：__________________
（2）need doing sth. 需要被做某事（=need to be done sth.）
e.g The flowers need watering every day.
=The flowers need to be watered every day.
翻譯：_____________________________
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