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单选题The primary topic of the passage is which of the following?A The origin of bioluminescence in plankton predatorsB The disadvantages of bioluminescence in microorganismsC The varieties of marine bioluminescent life formsD Symbiotic relationships between

题目
单选题
The primary topic of the passage is which of the following?
A

The origin of bioluminescence in plankton predators

B

The disadvantages of bioluminescence in microorganisms

C

The varieties of marine bioluminescent life forms

D

Symbiotic relationships between predators and their prey

E

Hypotheses on the causes of bioluminescence in plankton

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相似问题和答案

第1题：

Which of the following are primary differences between a laptop and a desktop CPU？（）

  • A、heat production 
  • B、L2 Cache 
  • C、clock speed 
  • D、front side bus
  • E、power consumption

正确答案:A,E

第2题：

Which of the following can be utilized from a Legacy form without additional coding？（）

  • A、Field Validations
  • B、Query Save logic
  • C、Dialog forms
  • D、All of the above

正确答案:A

第3题：

Which of the following describes the paradox of the schools?

A.Discrepancy between what they say and what they do.
B.Differences between teachers' problems and schools' problems.
C.Advantages and disadvantages of students’ learning opportunities.
D.Students' perception and the reality of their performance on assessments.

答案：D
解析：
细节题。根据关键词定位到第四段。根据原文“Their achievement results fed into the implicit mission of schools:the greater the spread of achievement among students, the more it reinforcedthe rank order. This is why, if some students gave up and stopped trying (even dropped out of school),that wasregarded as the student's problem, not the teacher's or the school's.”可知，学生之间成绩流传得越广，成绩的排名就越固定。结合前文及此处内容，也就是说成绩决定了学生学习的态度，态度决定了他们的排名表现。故本题选D。

第4题：

单选题
Which one of the following is most appropriate as the title of the passage?
A

Elephants and Mice

B

Man and Beast

C

Elephant and Bees

D

Wild Life Protection


正确答案： C
解析：
该段录音中指出在非洲很多地方，农民经常被时常造访的大象弄得疲惫不堪，而在这种情况下，某项最近发表的研究指出了一个解决办法，即用大象害怕的一种小生物——蜜蜂。接着录音就此展开了描述，因此选C。

第5题：

问答题
◆Topic 7: Living Alone　　Questions for Reference:　　1. More and more people are living by themselves today. Explain the reason.　　2. What’s the advantages and disadvantages of living alone?　　3. Which is the best way to have a happy life according to your understanding?

正确答案： 【参考答案】
You come home alone after a long day at work. You open the door to your home. No one is there. Is it blessed silence you hear -or echoing emptiness?
Millions of people who live alone today may have either experience. Some love living alone, yet others wish they didn’t have to.
When they open that door at night, people who live alone do not have to put up with demands or listen to someone’ s noise or meet anyone’ s dinner deadlines. They do not have to debate about which TV program to watch or stay off the phone because someone else is expecting an important call. No one else messes up their kitchen.
But when they are sick, no one else will bring them an aspirin or call the doctor. Preparing dinner for one can be difficult, and eating dinner for one night after night can be very lonely. Perhaps no one really cares what they did all day. If they are feeling sad, there may be no one to cheer them up. Some people who live alone say the worst times come when something very good happens because there is no one to share the joy.
During the course of a lifetime, one may sometimes live with others and sometimes live alone.
Each way of life has its advantages. Learning to take advantage of them is one key to contentment.
解析： 暂无解析

第6题：

生物发光技术 bioluminescence technique


正确答案: 用发光酶基因标记微生物的检测手段。

第7题：

单选题
Which of the following is true of women’s nurturiring nature according to the passage?
A

It is not inborn in any sense.

B

It is inspired by women’s families.

C

It is caused by social prejudice

D

It is partly biological in origin.


正确答案： C
解析：
由第二段第三句“But the signs that it is at least partly inborn are too numberous to ignore. (女人具有“照顾别人的特征”至少有部分是天生的，此类迹象多得不容忽视。)”可知，女性的这个特征有先天方面的原因。A项与句意相矛盾，B、C两项文章中均没提到。故选D。

第8题：

Which of the following can' NOT be used as a pre-reading task?__________

A．Predicting what a passage is about.
B．Creating a word web related to a topic.
C．Listening to the recording of a passage.
D．Sharing what is already known about a topic.

答案：C
解析：
考查阅读教学。在读前这一环节教师需要向学生介绍主题．引起学生的兴趣．向学生讲授关键的词句，介绍背景知识，帮助学生消除文化障碍，以便更好地理解文章。A项是预测文章内容，B项对应呈现新单词，D项则是分享关于主题已知的知识。故选C。

第9题：

单选题
Possible phase relationships between voltage and current in an alternating current circuit include which of the following conditions?（）
A

Current and voltage may be in phase

B

Current may lead the voltage

C

Current may lag the voltage

D

All of the above


正确答案： D
解析： 暂无解析

第10题：

单选题
Which of the following is most clearly similar to a cline as it is described in the second paragraph of the text?
A

A vegetable market in which the various items are grouped according to place of origin.

B

A wheat field in which different varieties of wheat are planted to yield a crop that will bring the maximum profit.

C

A flower stall in which the various species of flowers are arranged according to their price.

D

A housing development in which the length of the front struts supporting the porch of each house increases as houses are built up the hill.


正确答案： D
解析：
词汇理解题。文章第二段第一句提到Biologists call this kind of gradual variation over a certain geographic range a “cline” and interpret clines as strong indications that the variation is adaptive, a response to environmental differences。即cline是受环境影响而产生的某种适应性变化，D项“支撑房子门廊的前方支柱随着房子在山上建造的高度增加而伸长”，与原文的“受环境影响而产生适应性变化”表述一致，本题答案是D项。

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