根据以英语作为母语的人数计算，英语可能是世界上第三大语言，但它是世界上最广泛的第二语言。精品小编准备了高一下册英语单元质量检测题，具体请看以下内容。

I. 单项选择

1.  It is advised by health experts that windows should be opened now and then for air to _____, which makes the air in your room fresher.

A. go though         B. get through          C. circulate          D. spread around

2.  --What do you think of bacteria, _____good or bad?

--_____ to say, but one thing is certain: without bacteria, the world would be quite different from what it is.

A. Are they; hard       B. Is it; hardly         C. Is it; hard         D. Are they; hardly

3.  The widespread of super-hybrid rice around the world ______the lives of millions and millions of people suffering from hunger to a great level.

A. improved          B. is improving       C. has improved   D. has been improving

4.  Look! What has happened. I’d rather you ______ her about the bad news.

A. would not tell      B. hadn’t told         C. didn’t tell          D. hasn’t told

5.  Though the professor tried his best to explain the difficult question, the students still looked _____.

A. confusing          B. being confused     C. to confuse          D. confused

6.  You are given only half an hour to finish your speech on the subject, so you’d better not _____ it too far.

A. expand            B. extend            C. enlarge            D. increase

7. Though famous all over the world, Yuan Longping, sunburnt, ______ with his simple life and ____ in plain clothes, is still busy with his experiment to improve his super-hybrid rice.

A. being satisfied; being dressed              B. satisfying; dressing

C. satisfied; dressed                        D. to be satisfied; to be dressed

8. Organic food is produced from crops _____ chemicals, pests and so on. In one word, it is free from pollution of any kind.

A. that is free from      B. free of             C. free with        D. which are free of

9. ---“Tom spends too much and I am going to rid him _____ his pocket money.” the father said angrily.

---“No, No, you can’t but you can _____ the amount.”

A. from; cut down      B. of; reduce          C. with; lessen        D. for; decrease

10. Famous as he is, he still _____ a simple life, riding his motorcycle to do farm work and entertaining himself with his violin in his spare time. Which of the following is not OK?

16. It was reported that the plane I was to have taken crashed soon after it took off. _______ the traffic jam, I was

five minutes late for the plane.

A. As a result of        B. Thanks to          C. Because of        D. on account of

17. The operation room in every hospital has to _______bacteria of any kind so that the patient being operated on doesn’t get infected.

A. keep free from                          B. make it free from

C. to be made free with                      D. be kept free from

18. In his summary of the causes that _______the Industrial Revolution in England in the 18th century, he said it was the accumulated capital that played the most important part.

A. resulted from        B. led to             C. happened          D. took place

19. Just as exercise helps _______our bodies, reading helps _____ our mind, broadening our vision into the world

A. found; found                            B. to put up; to put up

C. to build up; to build up                    D. to set up; to set up

20. ---Would you like to ______the performance of newly developed energy-saving device?

---Sorry, but I am not in the position to ______.

A. make a comment on; comment             B. have a comment with; comment on

C. build up comments on; comment on         D. come up with a comment on; comment

21. ---I don’t know how to write the article assigned by our professor on international trade.

--You should have ______ your attention on the lecture that ______ how international situation affects exports and imports across the globe.

A. put; concentrate on                      B. paid; talked about

C. fixed; dealt on                          D. focused; focused on

22.  People often make a mistake about my nationality.  I was born of Chinese parents , _____, I look ______ but I was born and grew up in America, so I am an American.

A. however; Chinese                       B. therefore; Chinese

C. so; the Chinese                         D. therefore; a Chinese

23.  It is really disturbing to me that my once best friend _______ to me recently. Worse still, I don’t know what I have done wrong.

A. avoids to talk      B. escapes talking       C. stops to talk       D. avoids talking

24.  Parents in China often choose universities or university majors for their will-be-university-student children ________ future occupation, expecting them to make a lot of money and live a happy life.

A. with the view of   B. with the hope of   C. with the account of   D. with the opinion of

25.  The young graduate ______ his vegetable farm so successfully that soon he became No 1 vegetable producer in the area.

A. made            B. performed          C. worked           D. discovered

A little boy invited his mother to attend his school's first teacher-parent meeting. To the little boy's __1__, she said she would go. This __2__ be the first time that his classmates and teacher __3__ his mother and he felt __4__ of her appearance. Although she was a beautiful woman, there was a severe scar (疤痕) that __5__ nearly the entire right side of her face. The boy never wanted to __6__ why or how she got the scar.

At the meeting, the people were __7__ by the kindness and natural beauty of his mother __ 8__ the scar, but the little boy was still embarrassed (尴尬) and __9 __ himself from everyone. He did, however, get within __10__of a conversation between his mother and his teacher.

The teacher asked __11__, "How did you get the scar on your face?"

The mother replied, "__12__ my son was a baby, he was in a room that caught fire. Everyone was __13__ afraid to go in because the fire was __14__，so I went in. As I was running toward his bed, I saw a long piece of wood coming down and I placed myself over him trying to protect him. I was knocked __15__ but fortunately, a fireman came in and saved both of us." She __16__ the burned side of her face. "This scar will be __17__, but to this day, I have never __18__ what I did."

At this point, the little boy came out running toward his mother with tears in his eyes. He held her in his arms and felt a great __19__ of the sacrifice (牺牲) that his mother had made for him. He held her hand __20__ for the rest of the day.

1. A. enjoyment B. disappointment C. surprise D. excitement

2. A. would B. could C. should D. must

3. A. noticed B. greeted C. accepted D. met

4. A. sick B. ashamed C. afraid D. tired

5. A. included B. passed C. covered D. shaded

6. A. talk about B. think about C. care about D. hear about

7. A. impressed B. surprised C. excited D. comforted

8. A. in sight of B. by means of C. by way of D. in spite of

9. A. hid B. protected C. separated D. escaped

10. A. understanding B. reminding C. hearing D. learning

11. A. carefully B. seriously C. nervously D. anxiously

12. A. As B. When C. Since D. While

13. A. so B. much C. quite D. too

14. A. out of control B. under control C. in control D. over control

15. A. helpless B. hopeless C. senseless D. useless

16. A. pointed B. showed C. wiped D. touched

17. A. ugly B. lasting C. serious D. frightening

18. A. forgot B. recognized C. considered D. regretted

19. A. honor  B. sense C. happiness D. pride

20. A. quietly B. slightly C. tightly D. suddenly