摘要：答案：B。解析：第一个if引导宾语从句，tomorrow表明用一般将来时；第二个if引导条件状语从句，遵循“主将从现”原则，所以用rains。

40道中考英语从句专项练习题及参考答案解析：

宾语从句

Do you know ___ the new mobile phone last week? A. how much she paid for B. how much will she pay for C. how much did she pay for

答案：A。解析：宾语从句用陈述句语序，B、C是疑问句语序，所以选A。

I don't know if it ___ tomorrow. If it ___, I won't go fishing. A. rains; rains B. will rain; rains C. will rain; will rain

答案：B。解析：第一个if引导宾语从句，tomorrow表明用一般将来时；第二个if引导条件状语从句，遵循“主将从现”原则，所以用rains。

定语从句

The boy ___ is standing there is my brother. A. who B. which C. what

答案：A。解析：先行词是the boy指人，在从句中作主语，用关系代词who。

This is the book ___ I bought yesterday. A. that B. who C. what

答案：A。解析：先行词是the book指物，用关系代词that或which，这里用that。

状语从句

___ it rains heavily, we won't be late for school. A. Even though B. As soon as C. Since

答案：A。解析：even though“即使”，引导让步状语从句，符合句意。

I'll call you ___ I get to Beijing. A. as soon as B. until C. while

答案：A。解析：as soon as“一……就……”，引导时间状语从句。

以下是其他题目及答案解析：

She asked me ___ I liked the movie.（if/whether）答案：if/whether。引导宾语从句，意为“是否”。

The man ___ you saw just now is my teacher.（whom）答案：whom。先行词the man指人，在从句中作宾语，可用whom。

___ he was ill, he still went to school on time.（Although）答案：Although。引导让步状语从句，“尽管”。

I don't know ___ he will come or not.（whether）答案：whether。与or not连用，用whether引导宾语从句。

The house ___ windows face south is very bright.（whose）答案：whose。先行词the house，whose作定语修饰windows。

___ I got up early this morning, I still missed the first bus.（Though）答案：Though。同第9题，引导让步状语从句。

The boy with ___ I played tennis yesterday is my friend.（whom）答案：whom。先行词the boy，在从句中作with的宾语，用whom。

I'll stay at home ___ it rains tomorrow.（if）答案：if。引导条件状语从句，“如果”。

Do you know the reason ___ he was late?（why）答案：why。先行词是the reason，关系副词why在从句中作原因状语。

___ the weather is fine, we'll go for a picnic.（If）答案：If。引导条件状语从句。

The factory ___ my father works is very big.（where）答案：where。先行词the factory，where在从句中作地点状语。

He didn't leave ___ his mother came back.（until）答案：until。not...until“直到……才”。

The book ___ is on the table is mine.（which/that）答案：which/that。先行词the book指物，用which或that引导定语从句。

I'll tell him the news ___ he comes back.（as soon as）答案：as soon as。引导时间状语从句。

She said that she ___ to Beijing the next week.（would go）答案：would go。宾语从句中，主句是一般过去时，从句用过去将来时。

The woman ___ son is a doctor is very kind.（whose）答案：whose。先行词the woman，whose作定语修饰son。

___ it is snowing heavily, the traffic is still moving.（Although）答案：Although。引导让步状语从句。

I don't know ___ to do next.（what）答案：what。what to do作know的宾语。

The school ___ I studied ten years ago has changed a lot.（where）答案：where。先行词the school，where在从句中作地点状语。

He will call me as soon as he ___ the city.（reaches）答案：reaches。as soon as引导的时间状语从句，主将从现，he是第三人称单数，用reaches。

The movie ___ we saw last night was very interesting.（which/that）答案：which/that。先行词the movie指物，用which或that引导定语从句。

I'll go to the park with you ___ it doesn't rain tomorrow.（if）答案：if。引导条件状语从句。

Do you know ___ the girl in red is?（who）答案：who。引导宾语从句，询问“谁”。

The man ___ is talking to my father is a policeman.（who）答案：who。先行词the man指人，在从句中作主语，用who。

___ I was walking in the park, I saw a beautiful flower.（While）答案：While。引导时间状语从句，强调两个动作同时进行。

The book ___ he bought last week is very useful.（that/which）答案：that/which。先行词the book指物，用that或which引导定语从句。

She asked me ___ I was from.（where）答案：where。引导宾语从句，询问地点。

The boy ___ father is a scientist is very clever.（whose）答案：whose。先行词the boy，whose作定语修饰father。

___ it is very late, he is still working.（Although）答案：Although。引导让步状语从句。

I'll give the book to him ___ he comes back.（as soon as）答案：as soon as。引导时间状语从句。

Do you know ___ the meeting will begin?（when）答案：when。引导宾语从句，询问时间。

The house ___ he lives in is very old.（which/that）答案：which/that。先行词the house指物，在从句中作in的宾语，用which或that。

___ you work hard, you will succeed.（If）答案：If。引导条件状语从句。

The girl ___ is singing on the stage is my sister.（who）答案：who。先行词the girl指人，在从句中作主语，用who。

来源：蒙古元素