Unit 5 一. 单项选择 ( ) 1. Would you please not speak so loudly in public? Sorry. I will remember to speak in lower voice. A. the; aB. /; aC. the; the D. /; /( ) 3. The _of new inventions should be to make life easier, not to make it harder.A. rules B. subjects C. secretsD. purposes( ) 4. I have spent _on this job. I think I can finish it _ this afternoon.A. sometime; sometime B. sometimes; some time C. some time; sometime D. some times; some time( ) 5. Jim always keeps the tap running _ he finishes washing his face.A. since B. while C. as D. till( )6. Sir, please put out your cigarette (香烟). Sorry. I _ the sign.A. dont notice B. didnt notice C. havent noticed D. wont notice( )7. Checking your answers before handing in your paper can help you _ mistakes.A. makeB. provide C. avoid D. advise( )8. Youd better fix the machine _ I have told you. Otherwise, you may make more problems.A. like B. with C. as D. follow( )9. Jack is always _ to wait for a long time without getting angry.A. too patient B. patient enough C. enough patient D. very patient( )10. We should behave politely at home _. A. either B. as well C. also D. as well as( )12. He is businesslike（认真的）and is often _. I hope he will have more _ at his business.A. success; successful B. successful; success C. successfully; successfulD. successful; successful( )13. He always gets angry if he is kept _ for five minutes. A. waitingB. waitC. to waitD. waited( )15. The sun was shining brightly, _ everything there _ more beautiful. A. making; look B. to make; lookedC. and made; looking D. and making; be looked( )16.Dad, can I go to the movies tonight? Sure, but you _ come back home before 9 oclock. A. canB. mustC. mayD. might( )17. We dont know _ it next. Lets go and ask Mr. Li. A. what to doB. to do whatC. whether to doD. to do whether( )18. Can you come to have dinner with me this evening? Im afraid not. I _ take care of my grandmother. She is ill. A. cantB. have toC. mayD. could( )20. Lucy, let me help you fix your computer._. I can manage it myself. A. Thats OKB. No, thanks C. Perhaps notD. Not at all( )1.The second Sunday of May is _ Mothers Day. Its _ special day for children to show their love for their mothers. A. a:the B. the; a C. ；a D. ; the( )2-Do you know this town very well? -No, this is the first time I _ here. A. was B. was going C. came D. have been( )3-Li Ming is getting a lot better than expected（预料） -But his doctor _ he shouldnt be in a hurry to return to school. A. notices B. wonders C. warns D. asked( )4.Your father used to work in the factory, _? Adid he Bdidnt he C. does he Dusednt him( )5-Id like a cup of black coffee. What about you, Maggie? -I like coffee _ sugar much better. A. than B. for C. with D. to( )6.Which sign will you probably see in the museum? A. SOLD OUT B. NO PARKING C. NO PHOTOS D. LOOK OUT( )7.The bag is _ heavy for me A. so; that carry B. too; to carry it C. not enough; to carry it D. too; to carry( )8.People wont realize the importance of heath _ they lose it. Aif Bsince Cuntil Dafter( )10.These days lots of people are working _ to get_ for their living. A. hard enough; enough money B. enough hard; money enough C. enough hardly; m.ney enough D. hardly enough; enough m.ney( )11.Would you please _ me _ to do next? Ato tell；how Bto tell；what Ctelling；how Dtell；what( )14. Please keep quiet. If you make a lot of _, you may bring people trouble. A. voice B. noise C. sound D. singing( )15. Mary as well as her classmates _ English every morning. A. read B. is reading C. reads D. to read( )16. -Do you think reading aloud is the best way_ English? -Yes, I think so. A. to learn B. learn C. learns D. learned( )17. -Is that man in a red T-shirt Mr Smith? -It _ be Mr Smith. He is in London now. A. musnt B. can C. shouldnt D. cant( )18. Hell send us a message as soon as he _ Shanghai. A. arrives B.to reach C. gets D. arrives in( )19. The purpose of new inventions is to make life easier, _ it more difficu