when 引导的 时间状语从句
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•After the teacher came in, the students became quiet. •When the teacher came in, the students became quiet.
•After he finished his homework, he went to play basketball. •When he finished his homework, he went to play basketball. •Before I got to the airport, the guests had left． •When I got to the airport, the guests had left．
Use “when” to practice.
➢After the students became quiet, the teacher came in. When the students became quiet, the teacher came in.
➢After I went to Beijing, I visited Tian Anmen Square. When I went to Beijing, I visited the Tian Anmen Square.
➢Before I got to the airport, the guests had left． When I got to the airport, thee sentences with the correct tense for the verbs in brackets.
3. When we _w_e_r_e_w__a_tc_h_in_g_ (watch) TV, the telephone ___r_a_n_g____ (ring).
4. When we _w_e_r_e_d_a_n_c_i_n_g (dance), a stranger ___c_a_m_e____ (come) in.
1. When John _a_r_r_iv_e_d__ (arrive), I _w_a_s__c_o_o_k_in_g_ (cook) dinner.
2. When she __c_a_m_e___ (come) into my room, I _w_a_s_r_e_a_d_in_g_ (read) a book.
•When the telephone rang, my brother was doing his homework. “at the same time”
➢When I got to the airport, the guests had left． “when” means “before”
•I was watching TV. •My sister was in the shower .
•When I was watching TV, my sister was in the shower .
•My brother was doing his homework. •The telephone was ringing.
What were your families doing when you were doing your homework?
Please write 3 sentences with “when” to describe.
谢谢
➢When I went to Beijing, I visited the Tian Anmen Square. “when” means “after”
➢When we were dancing, a stranger came in. “when” means “at the same time”