Sometimes the same word has ________ meaning，...

Sometimes the same word has ________ meaning，which can be ________.

A．different slightly；confused

B．slight different；confusing

C．slightly different；confusing

D．different slight；confused

高三英语单项填空困难题查看答案及解析

189. “______” is a word in British English, which has the same meaning as “truck” in American English, such as: “lift/elevator”, “autumn/fall” and “luggage/baggage”.

高三英语单项填空简单题查看答案及解析

Don’t refer to the dictionary every time you come across a new word as sometimes its meaning may be _____ clearly in a given context．

A．picked out          B．ruled out          C．taken out             D．brought out

高三英语单项填空中等难度题查看答案及解析

Don’t refer to the dictionary every time you come across a new word as sometimes its meaning may be _______ clearly in a given context.

A. picked out　　 B. ruled out　　 C. brought out　　 D. taken out

高三英语单项填空简单题查看答案及解析

275. A telephone is an instrument by which we can speak to people far away. The underlined word means ____.

高三英语单项填空简单题查看答案及解析

In sports, sometimes a player has to take one for the team. The same appears to be true in the plant world, where reduced individual growth can benefit the broader community. The findings from the University of Michigan’s Paul Glaum and André Kessler of Cornell University help explain the persistence (持续存在) of some plant communities when theory predicts they should go extinct(绝种的).

“We looked at how chemical defense cues (信号) from plants, meant to prevent herbivores (食草动物), can also prevent pollinators,” said Glaum, a doctoral student in the U-M Department of Ecology and Evolutionary Biology. “The surprising model result is that while this can lead to fitness losses for individuals, the population effects can be positive for pollinators and plants under some circumstances.”

Many plants, including the wild tomato species used in this study, produce chemical compounds to repel (排斥) insect pests and other hungry herbivores. But those same chemical defenses can reduce the number of visits to the plant by pollinators such as bees, resulting in less pollination of individual plants and decreased growth.

“Biologists have puzzled over how such a costly defense mechanism (机制) can be maintained in these plant populations,” Glaum said. “How would a plant population with such a strategy persist?” Glaum and Kessler developed a computer model showing that decreased growth of individual plants can benefit overall populations and community resilience (恢复力) by indirectly controlling herbivore population growth. The results introduce mechanisms of persistence into communities previously found to be prone (易于遭受的) to extinction in theoretical models.

Tomatoes and other plants produce repellent chemicals called volatile (易挥发的) organic compounds in response to herbivore attacks. The presence of these so-called herbivore-induced volatile organic compounds can make the plant less attractive to pollinators, which can reduce pollen deposition (沉淀物) and negatively affect individual plants, an effect known as herbivore-induced pollinator limitation.

Previous modeling studies have looked at the direct effects of herbivory on a three-species community: flowering plant, pollinator and herbivore. Some of those studies predicted extinctions because growing herbivore populations would reduce the number of plants, limiting resources available to pollinators. In response, the pollinator population would decline, lowering plant reproduction.

1.According to the passage, the persistence of some plant communities may depend on __________.

A. chemical defenses of plants　　 B. increased individual growth

C. reduced chemical compounds　　 D. defense mechanisms of pollinators

2.The underlined word pollinator in Paragraph 2 probably refers to __________.

A. a kind of insects that help plants reproduce　　 B. a kind of animals that eat plants

C. a process of forming a plant community　　 D. a chemical that does harm to plants

3.Volatile organic compounds are __________.

A. less attractive to pollinators

B. able to have negative effects on individual plants

C. known as herbivore-induced pollinator limitation

D. chemicals produced by plants to attract herbivores

高三英语阅读理解困难题查看答案及解析

Staying silent can be just as powerful as the words you mean to say, like when the act of hugging will be more comforting than saying, “Sorry for your loss.”

Another time when silence is golden is when you are unsure of what to say. If you are confused about your own feelings concerning a matter, it’s best to stay quiet until you are more certain because more harm can be done by revealing false or exaggerated feelings

Choose silence instead of blurting out “in-the-moment” feelings that are hurtful and not really how you feel in the grand scheme of things. When you feel the urge to say an unkind thing, take a few breaths and think of the possible consequences of your words.

Silence can be your best friend during negotiations. Say your piece, then close your mouth, and let the other person come to their own conclusions. Your silence shows that one, you are confident in what you just said, and two, you respect the other person enough to hear what they have to say.

Sometimes silence is the best and most timely solution because the other person is not in a position to hear what you have to say. For example, when a friend needs for you to listen to her problems, but she is unable to accept your advice at that moment.

Practice being silent at work when you don’t have anything meaningful to contribute. Unless you can start the conversation by pointing out something interesting, missing, or beneficial, it’s best to just observe and learn.

Finally, silence is golden when you don’t want to engage in a fool’s argument. As some squabbles(口角) will never be resolved, one must agree to disagree.

However, there will be times in your life where you will need the power of your voice,the voice within you that wants and needs to be respected and appreciated.

1.The passage mainly tells us about ________.

A. whether or not to stay silent　　　　　　 B. why to stay silent

C. how to stay silent　　　　　　　　　　　　　 D. when to stay silent

2.What is the best to do during negotiation?

A. Grasp every chance to say more than the other

B. Close your mouth and just listen to the other

C. Speak out your own points and discuss with others

D. Keep silent after expressing yourself

3.To follow this passage, the writer is likely to continue telling about ________.

A. the occasions when you should speak up

B. the power of your voice

C. the advantages of speaking up

D. the disadvantages of staying silent

高三英语阅读理解中等难度题查看答案及解析

Staying silent can be just as powerful as the words you mean to say, like when the act of hugging will be more comforting than saying, “Sorry for your loss.”

Another time when silence is golden is when you are unsure of what to say. If you are confused about your own feelings concerning a matter, it’s best to stay quiet until you are more certain because more harm can be done by revealing false or exaggerated feelings

Choose silence instead of blurting out ‘in-the-moment’ feelings that are hurtful and not really how you feel in the grand scheme of things. When you feel the urge to say an unkind thing, take a few breaths and think of the possible consequences of your words.

Silence can be your best friend during negotiations. Say your piece, then close your mouth, and let the other person come to their own conclusions. Your silence shows that one, you are confident in what you just said, and two, you respect the other person enough to hear what they have to say.

Sometimes silence is the best and most timely solution because the other person is not in a position to hear what you have to say. For example, when a friend needs for you to listen to her problems, but she is unable to accept your advice at that moment.

Practice being silent at work when you don’t have anything meaningful to contribute. Unless you can elevate the conversation by pointing out something interesting, missing, or beneficial, it’s best to just observe and learn.

Finally, silence is golden when you don’t want to engage in a fool’s argument. As some squabbles will never be resolved, one must agree to disagree.

Hower,there will be times in your life where you will need the power of your voice,the voice within you that wants and needs to be respected and apprecitsed.

1.The passage mainly tells us about ___

A.when to stay silent　 B.why to stay silent

C.how to stay silent　　 D.whether or not to stay silent

2.What is the best to do during negotiation?

A.Grasp every chance to say more than the other

B.Close your mouth and just listen to the other

C.Say what you chould and draw a conclusion

D.Speak out your own points and let the other speak out theirs

3.What does the undedined word “elevate” most probably mean?

A.start　 B.conclude　 C.interrupt　 D.cancel

4.To follow this passage,the writer is likelhy to continue telling about___

A.the power of your voice

B.the occasions when you should speak up

C.the advantages of speaking up

D.the dissdantages of staying silent

高三英语阅读理解中等难度题查看答案及解析

The meaning of a word can be guessed according to the context, so you will not __________ refer to a dictionary the next time __________ you come across a new word.

A. really, when         B. exactly, that        C. likely, which            D. necessarily, /

高三英语单项填空中等难度题查看答案及解析

70. We can’t get rid of war until we get rid of the causes of war. Which of the following words has similar meaning of the underlined word? _____

高三英语单项填空简单题查看答案及解析