If从句（条件状语从句）
If it is fine tomorrow, I will climb the mountain.
If it is sunny this weekend, what will you do ?
If it is sunny this weekend, I __w_i_ll_p_l_a_y__ football with my classmates.
If you feel hungry, you should eat something.
If you feel tired, you must have a rest.
Look and say
If I’m ill, _I_w_i_l_l _s_e_e__a_d_o__c_to__r_.
If I’m late, _I _w_i_ll__s_a_y_s__o_r_ry____.
If it _d_o_e_s__n_’t__ra_i_n__ tomorrow,
_I’_ll_p_l_a_y_b_a_s_k_e_t_b_a_ll_.
practice
If you are free this weekend, what will you do ?
sleep
If I am free ,… watch TV
If it is sunny this weekend, what won’t you do ?
If it is sunny this weekend, I _W__o_n_’_t _s_ta_y__a_t_h_o_m__e____.
If it is sunny this weekend, I _w__o_n_’_t _w_a_t_c_h_t_e_le_v_i_s_io_n__.
（“主”将从“现”）
If I get up late, I will be =I will be late for
late for school.
school if I get up
If I don’t finish my homleawteo.rk,
I won’t go to bed.
Байду номын сангаас
• 1.主将从祈
If you are ill, you should go to see a doctor.
If you are riding a bike in the street, you must be very careful.
If it rains tomorrow, I_w_i_l_l _w_a_t_c_h__T_V__a_t_h__o_m__e. I won’t__p_la__y_b_a__s_k_e_t_b_a_ll_.
(not wait ) for him.
3. If you _b_u_y_ (buy) a new camera, __g_et_ (get)
a good one.
4. If the light _d_o_e_s_n_’t__co_m__e_ (not come) on, _w__a_it (wait) for one minute.
play computer games
Complete the sentences with the correct form of the words.
1.If you __li_s_te_n__(listen) to the music, _b_u_y__ (buy) a CD.
2. If he___is___ (be) late for school,d_o_n_’t_w__ait
• 2.主将从现 if… will/won’t
• 3.主情（can，may，should，must）从 现
Look and say
If I’m hungry,
I will_e_a_t_s_o_m__e__fo_o_d__.
If I’m tired,
I will__h_a_v_e_a__r_e_s_t __.
e.g. 1.If you don’t get up early, you will be late for school .你如
果不早点起床，上学就会迟到。
2. 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 have enough pocket money, what will you buy?
• If I have enough pocket money, • I ____________________.
Grammar 条件状语从句
由if引导的从句叫条件状语从句，if意为“如果” 当主句是一般将来时时，if引导的从句必须用现 在时来表示将来可能发生的动作或存在的状态。