2021新高考英语(人教)一轮复习课件：必修3 Unit 4 Astronomy the science of the stars

两语 1．一些科学家宣称他们找到了外星人在天空存在的证据。
Some scientists claimed that they had found some evidence __th_a_t_a_lie_n_s__ex_i_st_e_d_in__s_p_ac_e____． 2．中国成功把第一位宇航员送往天空的消息曾震惊了整个世界。 The news that China had managed to send the first astronaut into space once shocked the whole world.
7. react v．反应→ reaction n．反应；回应
[语境运用] 用所给词的适当形式填空 1．There was a puzzled look on the little girl's face because a puzzling problem puzzled her.(puzzle)
changed.
look？
重难考 点探究
1．harmful adj.有害的 (1)be harmful to 对……有害 harmless adj.无害的 (2)cause/do harm to ...对……造成伤害/有害 (3)there is no harm in doing sth.做某事没有害处
China the third country to send a person into space after Russia and the USA. 3．No one knows exactly how the earth began.However, according to a widely accepted theory, it began with a “Big Bang”．
7． in one's turn
轮到某人
8． watch out for 密切注意；当心；提防
高 9． depend on 依靠；取决于 频 10． break out 突发；爆发
短
语 11． block out 挡住(光线) 12． get the hang of 熟悉；掌握；理解
13． at midnight 在午夜
the harmful effects of tobacco 烟草的害处 be harmful to children's teeth 对儿童的牙齿有害
[基础练习]——单句语法填空 ①(广东卷)Some plants and animals contain natural poisons that are harmful _t_o_ people. ②(2019·浙江卷)However, no praise from parents also does harm _t_o_their self-confidence. ③He may not be able to help but there's no harm in asking (ask)
3．After his journey from abroad，Richard Jones returned home， __e_x_h_a_u_st_e_d____ (exhaust)．
4．The old scientist told his students that scientific theories (theory) must be based on facts. 5．My uncle's car caught fire by the road.Fortunately, he was pulled (pull) out of the car by a passer-by.
必修三
Unit 4 Astronomy:the science of the stars
课前三 言两语
三言 1．China sent up its first satellite completely designed and built by
middle school students in 2017. 2．After a 21-hour trip to space, the astronaut landed safely, making
3．Playing computer games will not only do harm to your physical health, but it is also harmful to your mental health.So there is no harm in advising you to give it up.(harm) 4．He often says that he doesn't believe in any religion but meanwhile he respects others' religious freedom.(religion) 5．Do you believe the existence of ghosts? Perhaps they only exist in the minds of some people.(exist)
2．Last night we had a discussion, which was to become more and more __vi_o_le_n_t____．Finally we reached an agreement that we will never use _v_io_le_n_c_e__ whatever happens.(violent)
[语境运用] (填入一个适当的词) A fire broke⑤_o_u_t_ in the building last night.Luckily，the firefighters arrived in time and put out the fire.We were warned to watch out ⑥_f_o_r_ electricity and gas when cooking our meals.Thanks to the firefighters' help，we were not injured.They are the men that we can depend ⑦_o_n_ when we are in trouble.
1．violent adj.猛烈的；激烈的；强暴的→ violence n．暴力→
violently
拓
adv.暴力地；猛烈地
展 2．like vt.喜欢 prep.像→unlike prep.与……不同；不像→dislike
单 vt.不喜欢；讨厌 词 3．harm n．& vt.伤害→ harmful adj.有害的→ harmless adj.
阅 1．fundamental adj. 基本的；基础的
链子；连锁；锁链
读 2．chain n．
溶解；解散
单 3．dissolve vt.& vi.
词 4．multiply vi.& vt. 乘；增加
5.gravity n． 万有引力；重力 6．extinct adj. 灭绝的；绝种的 7．solar adj. 太阳的；日光的 8．satellite n． 卫星；人造卫星
vi.& vt.碰撞；坠落 n．& vt.拉(力)；拖；牵引力 vi.& vt.(使)浮动；(使)漂浮
单 词 9． system
n．漂浮物 n．系统；体系；制度
10． theory n．学说；理论
[语境运用] 用所给词的适当形式填空 1．A truck went out of control and crashed (crash) into the back of a bus. 2．He found something floating (float) on the lake, which frightened him.
9.spaceship n． 宇宙飞船 10．mammal n． 哺乳动物 11．lessen vi.& vt. 减少；减轻 12．weightlessly adv. 失重地
(2017·浙江卷)Mac heard a large vehicle behind him.He pulled in front of it as the wolf was catching up fast, just a dozen yards away now.__停__车____
基础知 识梳理
[单词 拼写应用]
1．atmosphere n．大气层； 气氛 核 2. exhaust vt.用尽；耗尽；使精疲力尽 心
3． thus adv.因此；于是 单 词 4． gentle adj.温和的；文雅的
5． climate n．气候
6． crash 核 7． pull 心 8． float
无害的
4．exist vi.存在；生存→ existence n．存在；生存 拓 5．puzzle n．谜；难题 vt.& vi.(使)迷惑；(使)为难→puzzled adj. 展 感到困惑的→ puzzling adj.令人困惑的 单 6．religion n．宗教；宗教信仰→ religious adj.宗教上的；信 词 奉宗教的；虔诚的
him.
[链接写作]——一句多译 有些男生对玩电脑游戏简直到了痴迷的程度， 这对他们的健康 非常有害。 ①Some boys are too crazy about playing games on the computer, ____w_h_ic_h_i_s_v_e_ry_h_a_r_m_fu_l_t_o_th_e_i_r _h_ea_l_th____．(harmful) ②Some boys are too crazy about playing games on the computer, __w_h_ic_h_d_o_e_s_g_r_ea_t_h_a_r_m_t_o_t_h_ei_r_h_e_a_lth__________．(harm)
[短语 多维应用]
1． in time 及时；终于 高 2． prevent...from 阻止；制止 频 3． now that 既然 短 4． cheer up 感到高兴；感到振奋 语 5． lay eggs 下蛋
6． give birth to
产生；分娩
[语境运用] (填入一个适当的词) Now ① that we all understand that the haze is harmful to our health， we should take effective measures to prevent it ② from getting from bad to worse.No matter what happens，we must cheer ③ up and try to reduce the pollution.If we keep on，we'll succeed ④ in time.
develop.
party.
我付出的时间和精力是以前的三 2.倍数表达法
倍多，所以我相信我这次能成功。 But when I tried to step forward，I
I devoted three times as much found I was carried twice as far as __tim__e_a_n_d_e_n_e_r_gy__a_s__ I did before， on the earth and fell over.
[句式 结构仿写]
教材原句背诵
句式仿写应用
1．make＋ it＋ adj.＋for sb.＋ to (2018·全国卷Ⅰ)我认为我们参加
do
晚宴时带点小礼物是个好主意。
This produced a chain reaction， I think it a good idea to bring
a
which made it possible for life to small gift when we attend a dinner
so I believe I will succeethat 引导原因状语从 (2018·全国卷Ⅲ)既然你对我校这么感
句
兴趣，为什么不来看看呢？
...walking does need a bit of _N_o_w_t_h_a_t _yo_u__a_re_s_o__in_te_r_e_st_e_d_i_n_o_u_r ______ practice now that gravity has _s_c_h_o_o_l __, why not come here and have a