巩固练13 主语从句和同位语从句-2020年【衔接教材·暑假作业】新高二英语（人教版）

巩固练13 主语从句和同位语从句 1. _______is known to us all is that Johnson broke his promise ______ he would come to help me as soon as possible. A. It; that B. What; that C. As; which D. What; which 2. ________ is no doubt ________ Bob can win the first prize in the match. A. There; that B. It; that C. There; whether D. It; whether 3. _______ caused the accident has not been found out yet. A. What B. Which C. The thing D. That 4. ________ is the centre of our planetary system was a difficult concept to grasp in the Middle Ages. A. It’s the sun and not the earth B. The sun and not the earth C. Being the sun and not the earth D. That the sun and not the earth 5. A warm thought suddenly came to me _______ I might use the pocket money to buy some flowers for my mother’s birthday. A. what B. which C. that D. whether 6. ______ he referred to in his article was unknown to the general reader. A. That B. What C. Whether D. Where 7. Dad is used to smoking and drinking. There’s no chance I’m able to talk him into . A. whether; giving it up B. of whether; giving them up C. that; getting rid of them D. which; stopping it 8. _____ life exists on any other planet in the solar system still remains a question. A. Why B. Whether C. How D. Where 9. Is any possibility the majority of the labour force will work at home in the next few decades? A. it; that B. there; whether C. it; whether D. there; that 10. _____manners are very important in every country is known to all，but the trouble is that different countries have different ideas about ______good manners are. A. That；what B. That；that C. What；that D. What；what 一、填空题。 1. On ___________(平均), 90,000 people are killed in traffic accidents in China every year. 2. My brother has graduated from o