16.(2018呼和浩特)There are so many foggy days recently. We all wonder ________．

　　A. how is the air polluted

　　B. why the air is seriously polluted

　　C. what can we do to prevent that bad weather

　　D. what are the real reasons

　　17.(2018连云港)—WhatdidMaxjustsaytoyou?

　　—He asked me________．

　　A. if I would like to go skating

　　B. when did I buy this CD

　　C. where I will spend the weekend

　　D. that I had a good time

　　( )18.(2018青岛)—Excuseme.Couldyoutellme________

　　about the localhistoryandculture?

　　—Of course. You can check it on this computer.

　　A. how can I get the information

　　B. what information did I get

　　C. where I can get the information

　　D. that I got the information

　　命题点二 定语从句

　　关系词的判断：

　　①that作主语、宾语，先行词是人或物。

　　②which作主语、宾语，先行词是物。

　　③who作主语、宾语/whom作宾语，先行词是人。

　　④whose作定语，先行词是人或物。

　　⑤只能使用that的特殊情况。

　　1. (2018河南)Theaters may have a brighter future if they can provide a movie experience ________ people cannot get at home.

　　A. thatB. who C. whom D. what

　　2.(2018广东)Great changes have taken place in our city in the past ten years. Everything ________comes into sight is so new to me.

　　A. that B. which C. who D. whom

　　3.(2018南宁)I don't like the people ________ don't help others when they are in trouble.

　　A. who B. which C. whose D. what

　　4.(2018兰州)This is one of the most interesting cities ________ I haveever visited.

　　A. who B. that C. which D. where

　　5.(2018青海)QQ is a tool ________ is mainly used for people to talk to others online.

　　A. which B. who C. where

　　6.(2018呼和浩特)Being blind is something ________ most people can'timagine.

　　A.不填B. what C. who D. which

　　7.(2018临沂)Sweet wormwood(青蒿) is a common plant in China. Tu Youyou is the woman________used the plant's special power to save millions of lives.

　　A. which B. who C. whose D. /