154 Answered Questions for the topic TOEFL

Toefl

03/14/19

What are the sections of the TOEFL®
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Toefl

03/13/19

How can I prepare for the speaking section?
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01/15/16

sentence structure
i need to use the word crucible in a sentence, dose the structure look good ?     (Who has interesting in dissolve materials, must have his own crucible witch facilitate his work)  
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Toefl

12/15/13

I have a question about a practice test!! Why is the correct answer B? I choose C.
The middle class is hard to define; in part, being “middle class” is more than just economic position. By far the majority of Americans identity themselves as middle class even though they vary... more
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Toefl

12/14/13

I have a question about a practice test!! Why is the correct answer D? I choose A.
These and other problems with the Milankovitch cycles led some researchers to seek alternative explanations for the cyclic arrival of extended ice ages. In the 1990s, it was discovered that the... more
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Toefl

12/14/13

I have a question about a practice test!! Why is the correct answer A? I choose C. I can't understand it.
These and other problems with the Milankovitch cycles led some researchers to seek alternative explanations for the cyclic arrival of extended ice ages. In the 1990s, it was discovered that the... more
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Toefl

12/13/13

I have a question about a practice listening test!! Why is the correct answer D? I choose C. It doesn't make sense.
Transcript    P: That's exactly right. If you make something too simple, people get mad. They think that the writer thinks they're stupid. But a funny thing happened. More and more people started... more
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Toefl

12/13/13

I have a question about a practice test!! Why is the correct answer A? I choose B. It is difficult for me to understand this sentence structure.
Scientists believe that some birds navigate by use of star positions; this has been established with at least one species. In a series of studies, caged birds were subjected to the projection of... more
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Toefl

12/13/13

I have a question about a practice test!! Why is the correct answer D? I choose A.
Changes in the weather can trigger the start of the journey south, although birds in the Northern Hemisphere seem to know when it is time to migrate south before the winter. In some species at... more
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Toefl

12/11/13

I have a question about a practice test!! Why is the correct answer C? I chose B.
The chief health risk from inhaling radon or its daughter products is lung cancer. [ A ] Scientists have concluded that exposure to this carcinogen is the second leading cause of this disease in... more
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Toefl

12/11/13

I have a question about a practice test!! Why is the correct answer B? I chose A. It doesn't make sense to me.
Radon is a radioactive gas that is invisible and odorless. It forms during the decay of uranium-238, and in decaying, itself produces solid heavy metal radioactive particles of polonium, lead, and... more
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Toefl

12/10/13

I have a question about a practice test!! Why is the correct answer D? I chose C but I don't know the difference between absorb and consume.
Cellular slime molds are extraordinary life forms that exhibit features of both fungi and protozoa, although often classed for convenience with fungi. At one time they were regarded as organisms of... more
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Toefl

12/09/13

I have a question about a practice listening test!! Why is the correct answer D? I chose C.
ranscript of listening   Now, um, one problem with von Frisch's theory had been this: It seems to take the forager bees a long time to reach the food site. That's why ... [false start] That's why... more
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Toefl

12/09/13

I have a question about a practice listening test!! Why is the correct answer B? I chose D.
Transcript of listening   Now, um, one problem with von Frisch's theory had been this: It seems to take the forager bees a long time to reach the food site. That's why ... [false start] That's... more
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Toefl

12/08/13

I have a question about a practice test!! Why is the correct answer C? I chose D. I don't know the difference between C and D.
In June 1863, a Confederate army under the command of General Lee encountered a jnion army commanded by General Meade near the town of Gettysburg, Pennsylvania. The ensuing battle, which lasted... more
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Toefl

12/06/13

I have a question about a practice test!! Why is the correct answer D? I chose C.
Ir has not been common at Earth’s surface since the very beginning of the planet’s history. Because it usually exists in a metallic state, it was preferentially incorporated in Earth’s core as the... more
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Toefl

12/06/13

I have a question about a practice test!! Why is the correct answer B? I chose C.
2, At the end of the Cretaceous, the geological record shows that these seaways retreated from the continents back into the major ocean basins. no one knows why. Over a period of about 100,000... more
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Toefl

12/04/13

I have a question about a practice test!! Why is the correct answer B? I chose A. I don't know the difference between B and A.
Impacts by meteorites represent one mechanism that could cause global catastrophes and seriously influence the evolution of life all over the planet. According to some estimates, the majority of... more
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Toefl

12/03/13

I have a question about a practice test!! Why is the correct answer C? I chose D.
The panspermia hypothesis eventually fell out of favor for a variety of reasons.[A] Skeptics pointed out that microorganisms could not possibly survive the damage caused by ultraviolet radiation... more
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Toefl

12/03/13

I have a question about a practice test!! Why is the correct answer B. I chose D.
Despite the seeming implausibility* of the panspermia hypothesis, some theorists have resurrected the notion in recent decades since laboratory research has shown that many of the objections to the... more
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Toefl

12/03/13

I have a question about a practice test!! Why is the correct answer D? I chose B. I don't know the difference between D and B.
The panspermia hypothesis eventually fell out of favor for a variety of reasons. Skeptics pointed out that microorganisms could not possibly survive the damage caused by ultraviolet radiation and... more
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Toefl

12/02/13

I have a question about a practice test!! Why is the correct answer D? I chose C.
The basic operation behind this system uses the heat energy stored in the oceans as a source of power. The plant exploits the difference in water temperature between the warm surface waters heated... more
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Toefl

12/01/13

I have a question about a practice test!! Why is the correct answer D? I chose A.
The practice of artificial irrigation affected the soil in various ways, but not always for the good. Since the channels were often shallow, there was frequently a great loss of water through... more
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Toefl

12/01/13

I have a question about a practice test!! Why is the correct answer A? I chose B. I don't know the difference between A and B.
Both in Egypt and Mesopotamia, the periodic floods of great rivers such as the Nile and the Tigris-Euphrates not only supplied water to the fields but also brought down fresh soil in the form of... more
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Toefl

12/01/13

I have a question about a practice test!! Why is the correct answer A? I chose D.
In the Neolithic period, starting around 10,000 years ago, perhaps the most important economic revolution in human history occurred the commencement of agriculture and the domestication of animals... more
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