if引导的条件状语从句ppt课件

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1.If It______ (rain) tomorrow, I______(stay) at home.
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If it rains tomorrow, I_w__il_l _w_a_t_c_h_T_V__a_t_h_o_m__e__.
If it _d_o__e_sn_'_t_r_a_in___ tomorrow,
_I'_ll_p_la_y_b_a_s_k_et_b_a_ll___.
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练一练:
1。如果她早点儿起床,就有时间在家里吃早餐 If she____ge_t_s__uaplittle earlier, she'll have time to eat breakfast at home. 2。如果你参加聚会,你将会过得很开心。 If you__j_o_inthe party ,you___w__ill_h_a_v_ea great time. 3。如果明天下雨,我们将不去野餐 If it __r_a_itnosmorrow, we __w_o_n_'_t _gofor a picnic. 4。如果你经常听英文歌,你将会喜欢英语 If you often ____lis_t_e_nEtnoglish songs, you___w_i_ll_lEikneglish.
exercise. ? A. if, B, unless C, whether ? 2. _______ you hurry up, you will miss the early
bus. ? A. if, B, unless C, whether
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2.考时态---做题思路: 认字-- 判断语境提供的时态特点--选择正确的时态
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拓展:那么,除了 if之外,是否
还有其他连词可以引导条件状语 从句呢
1. as ( so ) long as…. “只要…, 就… ” 表示 一种前提条件
? You'll succeed as (so ) long asyou try hard. ? 只要你努力,你就会成功。
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2.unless .除非;若不;如果
不……;除非在……时候
? You will fail to arrive there in time
earlier.
unless you start
? 如果你不早点动身,你就不能及时赶到那儿。
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分分析析试试题特题点特及点做及题做思题路思:路:
? 1.考连词---做题思路: ? 分析句子--- 判断关系--- 选择正确的连词: ? 1.You won't get nervous _____you do enough
语法专练: If 引导条件状语从句
2020/4/8
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一、什么是条件状语从句?
定义:if “如果 , 假如” 它引导的句子表示某事发
生所需的条件,即“在…条件下,某事才能发生”, 在句子中充当状语,因此称之为条件状语从句。( If 引导的条件状语从句表示假如有从句的动作发生, 就会有主句动作的发生 )
If it rains tomorrow ,I will stay at home.
位置:从句可放在主句之前或之后,但是放在主句之
前须有逗号隔开
eg:如果我有足够的钱,我就去环游世界
If I have enough money, I will travel
around the world
=I will travel around the world if I
have enough money
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பைடு நூலகம் 用法:
1. 如果主句是一般将来时,从句则用一般现在时。
If it rains(从句), I will stay at home. I'll go with you if you don't want to go alone(从句) .
2.如果主句含有must, may, can等情态动词,从句也要用
happy. 4.If I __d_o_n_'_t_e_a_t (not ,eat )so much ,I __w_i_ll__g_e_t_(get) thinner. 5.If you ___t_e_ll_(tell) them, they _____________ (nowto,nb'etlibeveeli)evyoeu.
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? 3. 如果主句是祈使句,从句同样要用一 般现在时。
Don't go and play football if you don't finish your homework.
Please call me if he comes next Sunday.
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Look and say
If I'm hungry,
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用所给单词的正确形式填空:
1.If he__d_o_e_s_n_'_t_d_o__ (not, do ) it, I ___________(do) it. will do 2.If you ___a_re(be) late for school ,my teacher __w__il_l _b_e_(be) angry. 3. If she___w_i_n_s__ (win) the prize ,we _____w__il(lbbee)
I will__e_at_s_o_m__e_fo_o_d___.
If I'm tired,
I will__h_a_v_e_a__re_s_t___.
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Look and say
If I'm ill, _I _w_i_ll_s_e_e_a__d_o_c_t_o_r ___.
If I'm late, _I _w_i_ll_s_a_y_s_o_r_r_y_____.
一般现在时。 If you drive too fast, you may have an accident. You must stop if the traffic is red. If you finish the homework, you can go home. 如果你作业做完了就可以回家了。 If you wantto lose weight youmust/should eatless bread. 如果你想减肥,你必须少吃面包。
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