高中英语语法易错：定语从句

　　1. They ______ on the program for almost one week before I joined them, and now we _____on it as no good results have come out so far.

　　A. had been working; are still working B. had worked; were still working

　　C. have been working; have worked D. have worked; are still working

　　解析：此题的时间参照点是before I joined them,，所以第一个空应该用过去完成进行时，第二个空根据时间now用现在进行时。

　　答案：A

　　2. It would be a good idea to use a plastic bottle, ___cut off, as a container to grow young plants in.

　　A. of which the top B. the top is C. the top of which D. with its top

　　解析：此题是独立主格结构，如果题干改为____is cut off,答案则为A或C

　　答案：A.C

　　3. ______ is it _____ has made Peter _____ he is today?

　　A. What; that; that B. That; that; what C. What; what; that D. What; that; what

　　解析：用还原法则为It is what that has made Peter what he is today可知是强调句式。

　　答案:D

　　4. Before he went abroad，he spent as much time as he _____ English.

　　A. could learning B. learned C. to learn D. could to learn

　　解析：spend time (in) doing sth如果改为he did what he ______,则答案为could to learn.

　　答案：D

　　5. The person we talked about ____ our school last week．

　　A．visiting B．will visit C．visited D．has visited

　　解析：此题中包含一个定语从句，the person既作先行词，又作句子的主语，要填入的应该是句子的谓语，根据后面的时间状语为last week，应选过去时。句中包含的定语从句we talked about中about虽为介词，但不影响主句的谓语，故应选C。

　　答案：C

　　拓展：观察下面三个句子：

　　□The person we spoke to ____ no answer at first．

　　A．making B．makes C．make D．made

　　此题中也包含一个定语从句we spoke to，the person既作先行词，又作句子的主语，要填入的应该是句子的谓语，根据句子的需要，应选过去时。本题中的to为陷阱，实际上它属于定语从句中，而不影响主句的谓语动词。故D正确。

　　□The person we referred to（提及）____ us a report tomorrow．

　　A．giving B．will give C．gave D．give

　　同上题一样，句中包含定语从句we referred to，所缺成份为句子的谓语，又根据句中的tomorrow，故用将来时。选B。

　　□The days we have been looking forward to ____ soon．

　　A．coming B．will come C．came D．have come

　　同理，此句中的定语从句包含短语look forward to，虽然to为介词，但并不影响主句的谓语动词，只是一个陷阱而矣。又根据句中的soon，应用将来时，故选B。 　　1. They ______ on the program for almost one week before I joined them, and now we _____on it as no good results have come out so far.

　　A. had been working; are still working B. had worked; were still working

　　C. have been working; have worked D. have worked; are still working

　　解析：此题的时间参照点是before I joined them,，所以第一个空应该用过去完成进行时，第二个空根据时间now用现在进行时。

　　答案：A

　　2. It would be a good idea to use a plastic bottle, ___cut off, as a container to grow young plants in.

　　A. of which the top B. the top is C. the top of which D. with its top

　　解析：此题是独立主格结构，如果题干改为____is cut off,答案则为A或C

　　答案：A.C

　　3. ______ is it _____ has made Peter _____ he is today?

　　A. What; that; that B. That; that; what C. What; what; that D. What; that; what

　　解析：用还原法则为It is what that has made Peter what he is today可知是强调句式。

　　答案:D

　　4. Before he went abroad，he spent as much time as he _____ English.

　　A. could learning B. learned C. to learn D. could to learn

　　解析：spend time (in) doing sth如果改为he did what he ______,则答案为could to learn.

　　答案：D