三、模擬單句演練

　　(1) Just now Jim tells me his mother was ill.

　　(2) I phone the other students a moment ago.

　　(3) We often played together when we are children.

　　(4) What are you doing when I called you?

　　(5) I see you in the park. You were talking to a pretty girl.

　　(6) She doesn’t hear the doorbell, for she was watching TV.

　　(7) We’ll stay at home playing cards if it will rain tomorrow.

　　(8) Please let me know if you will have any trouble.

　　(9) He hurt his back when he is playing football with his classmates.

　　(10) I’ll write to him when I finished the book.

　　(11) Charles worked hard since leaving school.

　　(12) In fact, I am very thin when I was young.

　　(13) He is kind to me. Although he is very busy, he still came to see me.

　　(14) How long have you been here? How did you like our city?

　　(15) As is known to us all, the earth turned around the sun.

　　(16) I’m interested in English, so I spoke it better than the others do.

　　(17) Don’t worry about it. I promise you I come to help you.

　　(18) Now everything is dear. Even a small piece of bread cost one yuan.

　　(19) Remember to turn off the lights before you will leave.

　　(20) I forget to tell him the news. Shall we telephone him now?

　　【參考答案】

　　(1) tell 改為 told，因句中有表過去的時間狀語just now(剛剛)。

　　(2) phone 改為 phoned，因句中有表過去的時間狀語a moment ago。

　　(3) are 改為 were，因主句謂語為一般過去時。

　　(4) are 改為 were，因從句謂語為一般過去時。

　　(5) see 改為 saw，因下文用了 were talking。

　　(6) doesn’t 改為 didn’t，因下文用了 was watching。

　　(7) 去掉if從句中的 will，因條件狀語從句要用一般現(xiàn)在時表示將來意義。

　　(8) 去掉 will，因條件狀語從句要用一般現(xiàn)在時表示將來意義。

　　(9) is 改為 was，因主句中的hurt為一般過去時。

　　(10) finished 改為finish，或在 finished 前加 have。即在時間狀語從句中要用一般現(xiàn)在時表示將來意義，但這里也可用現(xiàn)在完成時表示完成。

　　(11) worked 前加has，句中的 since 表示“自從……以來一直……”，即表示從過去持續(xù)到現(xiàn)在的一段時間，故用現(xiàn)在完成時。

　　(12) am 改為 was，根據(jù)從句中的一般過去時可知 am 應(yīng)改為 was。

　　(13) came 改為 comes，根據(jù)前面的兩處一般現(xiàn)在時可知。

　　(14) did 改為 do，根據(jù)前面的現(xiàn)在完成時可知“你”現(xiàn)在還在我們城市，故后面一句問的是“你”現(xiàn)在對我們城市的看法。

　　(15) turned 改為 turns。本句敘述的是客觀真理，故用一般現(xiàn)在時。

　　(16) spoke 改為 speak。全句敘述的是現(xiàn)在的情況。

　　(17) come 前加 will，根據(jù)句意，此處應(yīng)是將來時態(tài)。

　　(18) cost 改為 costs，句子講述的是現(xiàn)在的一般情況。

　　(19) 去掉 will，時間狀語從句要用一般現(xiàn)在時表示將來意義。

　　(20) forget 改為 forgot，根據(jù)句意，此題的“忘記”應(yīng)是指過去忘記。