精英家教网 > 高中地理 > 题目详情

【题目】

The earlier settlers learned to farm the land through ______ and error.

A. test

B. trial

C. experiment

D. try

【答案】B

【解析】句意:更早期的定居者通过反复试验来学习耕种土地。trial and error反复试验。

练习册系列答案
相关习题

科目:高中地理 来源: 题型:

【题目】用protect, prevent, guard或defend填空。

【1】The rain __________ us from playing football.

【2】Our country is __________ with a strong army, a navy and an air force.

【3】Scientists believe there’s something in tea that __________ the heart.

【4】We shall __________ our island, whatever the cost may be.

【5】All the approaches to the palace were __________ by troops.

查看答案和解析>>

科目:高中地理 来源: 题型:

【题目】

Doctors are known to be terrible pilots. They dont listen because they already know it all. I was lucky: I became a pilot in 1970, almost ten years before I graduated from medical school. I didnt realize then, but becoming a pilot makes me a better surgeon. I loved flying. As I flew bigger, faster planes, and in worse weather, I learned about crew resource management(机组资源管理),or CRM, a new idea to make flying safer. It means that crew members should listen and speak up for a good result, regardless of positions.

I first read about CRM in 1980.Not long after that, an attending doctor and I were flying in bad weather. The controller had us turn too late to get our landing ready. The attending doctor was flying; I was safety pilot. He was so busy because of the bad turn, he had forgotten to put the landing gear(起落架)down. He was a better pilotand my bossso it felt unusual to speak up. But I had to: Our lives were in danger. I put aside my uneasiness and said,We need to put the landing gear down now!That was my first real lesson in the power of CRM, and Ive used it in the operating room ever since.

CRM requires that the pilot/surgeon encourage others to speak up. It further requires that when opinions are from the opposite, the doctor doesnt overreact, which might prevent fellow doctors from voicing opinions again. So when Im in the operating room, I ask for ides and help from others. Sometimes theyre not willing to speak up. But I hope that if I continue to encourage them, someday someone will keep me fromlanding gear up.

【1】 What does the author say about doctors in general?

A. They like flying by themselves.

B. They are unwilling to take advice.

C. They pretend to be good pilots.

D. They are quick learners of CRM.

【2】The author deepened his understanding of the power of CRM when .

A. he saved the plane by speaking up

B. he was in charge of a flying task

C. his boss landed the plane too late

D. his boss operated on a patient

【3】In the last paragraphlanding gear upprobably means .

A. following flying requirements

B. overreacting to different opinions

C. listening to what fellow doctors say

D. making a mistake that may cost lives

【4】 Which of the following can be the best title for the text?

A. CRM:A New Way to Make Flying Safe

B. Flying Makes Me a Better Doctor

C. The Making of a Good Pilot

D. A Pilot-Turned Doctor

查看答案和解析>>

科目:高中地理 来源: 题型:

【题目】The dictionary is _________: many words have been added to the language since it was published.

A. out of control B. out of date

C. out of sight D. out of reach

查看答案和解析>>

科目:高中地理 来源: 题型:

【题目】(2016 北京卷) _________ over a week ago, the books are expected to arrive any time now.

A. Ordering B. To order C. Having ordered D. Ordered

查看答案和解析>>

科目:高中地理 来源: 题型:

【题目】书面表达

从2016年底以来,共享单车突然就在国内火爆起来。重庆的街头巷尾也随处可见小黄车的身影,确为大家带来了许多便利。可存取不限的共享单车也可谓命运多舛:被恶意破坏,刷漆据为己有,关进自家走廊不让别人用等不良现象也屡屡被媒体曝光。学生作为共享单车主要的使用群体之一,请分享你对此现象的看法。

内容提示:

1.共享单车的现状和问题;

2. 你对这些问题的看法;

3. 你的建议

注意:

1. 词数100字左右;

2. 符合语言规范,行文连贯。

备用词汇:shared bicycle 共享单车

_________________________________________________________________________________________

_________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

查看答案和解析>>

科目:高中地理 来源: 题型:

【题目】(2017·天津)—I want to see Mr. White. We have an appointment.

—I’m sorry, but he is not ___________ at the moment, for the meeting hasn’t ended.

A. busy B. active C. concerned D. available

查看答案和解析>>

科目:高中地理 来源: 题型:

【题目】(2017·天津) Mr. and Mrs. Brown would like to see their daughter _____, get married, and have kids.

A. settled down B. keep off

C. get up D. cut in

查看答案和解析>>

科目:高中地理 来源: 题型:

【题目】

--- Why!I get you on the phone.

--- We basketball on the playground when you phoned.

A. didnt;must be playing

B. couldnt;must be playing

C. couldnt;must have played

D. didnt; must have been playing

查看答案和解析>>

同步练习册答案