TPO29听力解析
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正确答案:B解析:B项对应第一段第2句。
在第一段中,只是列举而没有对比amphorae和pottery,排除A;on a fast wheel and fired in a kiln capable of ensuring a consistent finish提到了快速转轮和烧窑的使用,a consisten finish说明到最后都保证质量,而不是陶器质量下降了,排除C;the large jars used throughout Mediterranean提到了amphore在地中海大量使用,但是practical tableware在地中海的使用范围不明确,排除D。
Q2正确答案:C解析:定位到第一段第4句,“提到Most Roman pottery is light and smooth to the touch and very tough, although, like all pottery, it shatters if dropped on a hard surface”,可看出Roman pottery并不比其它古代陶艺品更禁摔,C项和原文的描写冲突。
根据light and smooth,排除B;根据第1句话,排除A;根据倒数第2句中的occasional minor blemishes(flaws),排除C。
Q3正确答案:D解析:在第二段中,A项对应段中“hold liquids well”; B项对应“regular and standardized shapes would have made them simple to stack and store”;C项对应“with their hard and sometimes glassy (smooth and shiny) surfaces”;D项与原文“need to be convinced of its true age”不符,因此NOT true。
为了帮助大家高效备考托福,为大家带来托福TPO29口语Task4阅读文本+听力文本+题目+满分范文,希望对大家备考有所帮助。
托福TPO29口语Task4阅读文本: Scatter Hoarding Many animals live in environments where food is plentiful during certain times of the year and scarce during other times of the year. In such environments, some animals collect and prepare food when it is plentiful, then hoard it – store it – for future use. Some types of hoarders engage in scatter hoarding. Unlike other types of hoarders, scatter hoarders do not store the food all in once place; instead, they scatter it – divide it up and hide it in many different places. Later, at a time when food is scarce, the hoarders return to these hiding places and recover the food. 托福TPO29口语Task4听力文本: Now listen to part of a lecture on this topic in a biology class. (male professor) OK, so we sometimes see this with animals that live in parts of the world where it gets very cold in the winter. For example, in the northeaster United States, there's a species of squirrels that does this. This squirrel, like many species of squirrel, loves to eat nuts. Nuts are one its primary sources of food. Now, nuts are very difficult to find in the winter. But in the autumn, they are lying all over the place because that's when they fall from the trees.So, what this squirrel does is in the autumn it spends a lot of time finding nuts. After it finds a nut, it prepares it. It takes off the outer shell and cleans it. This preparation may in some way help preserve the nut and or may make it easier to eat later on. The squirrel then digs a little hole in the ground and buries the nut. In one autumn, this squirrel may bury hundreds of nuts.But it doesn't just dig a big hole and put all the nuts in it and cover them up. No, it digs hundreds of holes all over the place. And it puts just one nut in each hole. Now, why would it do that? Well, probably primarily because even if other animals happen to find some of the holes, some of the nuts, the squirrel will still have a lot of other holes with nuts in them so it’ll still have enough food to survive the winter. 托福TPO29口语Task4题目: Explain how the example from the professor’s lecture illustrate the practice of scatter hoarding. 托福TPO29口语Task4满分范文: Animals usually hoard some food for the time when there's no food. And some animalsdivide their storage of food into different places and when the food is scarce, they return to the places and recover the food. For example, there's a kind of squirrels feeding on nuts that are plentiful in autumn while scarce in winter. So they spend a lot of time in autumn finding nuts. Then they prepare nuts by taking off the shells and cleansing them, which helps preserve and makes the nuts easier to eat later on. After that the squirrels dig thousands of holes at different places to hoard the prepared nuts so that even if some of the nuts are found by other animals, they still have enough food for the winter. (132 words) 以上是给大家整理的托福TPO29口语Task4阅读文本+听力文本+题目+满分范文,希望对你有所帮助!。
2019年TPO29托福口语Task3原文及参考答案TPO29口语Task3题目:Remove Old Bicycles from Campus RacksI noticed that there are bicycles locked to the campus bicycle racks that have not been moved for a long time. I think the university should remove these bikes from the racks and dispose of them. I recommend this action because,first of all, they will not be missed by anyone, since they apparently havebeen forgotten b y their owners. More important, removing the bikes would helpto free up space on the racks, thereby benefiting people who are actually using their bikes and need places to park them.ConversationNow listen to two students discussing the letter.Woman:He’s totally right about this, you know?Man:Well, I agree they should do it, but maybe it’s not fair.Woman: What? Just assuming no one wants them? Well, judging from the conditions some of them are in, I thinkit’s probably a safe assumption. I mean, some are missing parts like handlebars or wheels, and others are really rusty like they've been left outside in the rain for years.Man:Yeah, the ones with missing parts sure don’t l ook like they are being used but what if some are?Woman: Well, to be sure, the university could always attach notes to them and say give the owners two weeks to remove them or they’d be removed by campus security.Man:Yeah, that’ll probably work.Woman:Anyway, it’ll be really big help if they were gone.Man: Oh, I know.Woman: Because, I mean, especially like in front of the dining hall, there are lots of them there and it can bereally hard to find a space. All the spaces are always taken there.Man:Yeah, it’s bad. Lots of people ride bikes these days.Woman: And since the university doesn't allow us to tie them to signposts, or fences or anything like that to park them, I always have to lock mine up in another building and walk over to th e dining hall cause there’s hardly ever a space.QuestionThe woman expresses her opinion about the proposal in the letter. Briefly summarize the proposal. Then state her opinion and explain the reasons she gives for holding that opinion.Key Points1. won’t be missed2. free up spaceTPO29口语Task3参考答案(范文模板):The woman endorses the letter’s proposal to remove the old bikes from the racks and throw them away. According to the letter, the bikes will not be missed by anyone since they have already been there for a long time and the woman reckons it’s true, saying a lot of the bikes that are still there are missing parts and look rusty, like they’ve been therefor years. The letter also notes that doing this would help to free up a lot of space on the bike racks so that they can be used by students who actually have bikes that want to park and the woman adds that it will help to find more space to park bikes cos she says that she often has to ride to another building and park her bike there cos the space in the parking lots at the school is so limited.。
¡¡¡¡ÎªÁ˰ïÖú´ó¼Ò¸ßЧ±¸¿¼Íи££¬Îª´ó¼Ò´øÀ´Íи£TPO29×ÛºÏд×÷ÔĶÁÔ-ÎÄ+ÌýÁ¦Ô-ÎÄ+Âú·Ö·¶ÎÄ£¬Ï£Íû¶Ô´ó¼Ò±¸¿¼ÓÐËù°ïÖú¡£¡¡¡¡Íи£TPO29×ÛºÏд×÷ÔĶÁÔ-ÎÄÎı¾£º¡¡¡¡Large numbers of dinosaur fossils have been discovered in deposits on Alaska's North Slope, a region that today experiences an extremely cold,arctic climate. One hundred million years ago, when those dinosaurs were alive, the environment of the North Slope was already inhospitable,especially during the winter when it experienced several months of total darkness. How did the dinosaurs survive the wintertime? Paleontologists have proposed that one of the most common North Slope dinosaurs, the elephant-sized edmontosaur (Edmontosaurus), survived the winter by migrating south to more hospitable regions. Several arguments support the migration hypothesis. First, the edmontosaur's diet supports the migration hypothesis.Edmontosaurs fed exclusively on plants. Since there would have been no plants growing during the cold and dark North Slope winter, it appears that the edmontosaur must have left for at least part of the year and migrated to more temperate zones to find food. Second, many edmontosaur skeletons have been unearthed from the same site. This suggests that edmontosaurs lived in herd. Many modern-day migratory animals, such as caribou and buffalo, live and migrate in herds as well. Moving in herds helps animals coordinate their migration.The finding that edmonotsaurs lived in herds further supports the migration hypothesis. Finally, edmonosaurs were physically capable of migrating long distances. To reach more hospitable regions, the edmontosaur had to migrate about 1,600 kilometers southward. To make such a journey, the edmontosaur needed to move at about five kilometers per hour for several weeks, which is certainly could do. These animals could run very fast, reaching speeds up to 45 kilometers per hour. It could have easily used its locomotive power to move to warmer climate during the harsh arctic winters.¡¡¡¡Íи£TPO29×ÛºÏд×÷ÌýÁ¦Ô-ÎÄÎı¾£º¡¡¡¡ProfessorThe hypothesis that the Edmontosaur migrated every winter is not convincing.First, the Edmontosaur did not have to migrate to find food. Once hundred million years ago, the summer temperatures in the North Slope area were warmer than they are today. And remember, in arctic regions like the North Slope, the Sun shines 24 hours a day at the peak of the summer. The warm temperatures and extensive daylight created incredibly good growing conditions for plants, so much vegetation was produced during the summer that when the vegetation died as the winter came, there was a lot of nutritious dead vegetation around in the winter. The Edmontosaur could have easily lived on the dead plant matter during the winter.Second, just because Edmontosaurs lived in herds doesn't mean they migrated. Animals live in herds for many other reasons. Living in herds, for example, provides animals with extra protection from predators. Having extra protection is useful even for the animals that live in the same area the whole year around. A modern example of this is the Roosevelt elk¡ªa large plant-eater. Roosevelt elks live in the forests of the western United States. They live in herds but they do not migrate.Third, although adult Edmontosaurs were capable of migrating long distances, what about Edmontosaurs that were not yet adults? Juvenile Edmontosaurs were not physically capable of travelling the great distances required to reach warmer territories and would have slowed the herd so much that the herd never would have made it to its destination. The herd could not have left the juveniles behind because the juveniles would not have survived on their own. So the whole herd had to stay where they were and survive on the cold North Slope.¡¡¡¡Íи£TPO29×ÛºÏд×÷Âú·Ö·¶ÎÄ1£º¡¡¡¡In the reading passage, the writer claim that edmontosaurus had to migrate to hospitable places in the south, if they want to survive in the cold weather. The speaker, however, contradicts this view for the following three reasons. First of all, the reading materials points out that it is difficult that edmontosaurus to find food in cold winter because of they were fed on plants exclusively. But the speaker reputes that warm weather in summer supplied perfect condition for plants to grow. So edmontosaurus might found lots of nutritious dead vegetation around in the winter, which made migration unnecessary. Second, unearthed skeletons from the same site indicated that edmontosaurus lived in herds. Living in herds made migration much easy. But the lecture gave an example of Roosevelt elks to prove that group living might have various types of reasons. So edmontosaurus may live in herds in order to seek for extra protection. So living in herds could not provide evidence for migration claim. Lastly, edmontosaurus, in view of the writer, had the ability of long-distance movement. Although the lecturer admitted the locomotive capability of edmontosaurus, he points out that juvenile edmontosaurus were lack of such ability. So the herd would not leave juveniles behind in the North Slope, which strongly reputes the author¡¯s claim.¡¡¡¡Íи£TPO29×ÛºÏд×÷Âú·Ö·¶ÎÄ2£º¡¡¡¡In the reading passage, the writer proposes several arguments to support the hypothesis that in order to survive the winter, edmontosaur would migrate south to more hospitable regions. The speaker, however, contradicts this view for the following three reasons. First of all, the reading materials points out that since edmontosaurus fed exclusively on plants, it was difficult for edmontosaurus to find food in cold winter because no plants growing during the cold and dark North Slope winter. But the speaker reputes that the temperature in North Sloper were much warmer than they are today. So warm weather in summer supplied perfect condition for plants to grow, and edmontosaurus might found lots of nutritious dead vegetation around in the winter, which made migration unnecessary. Second, unearthed skeletons from the same site indicated that edmontosaurus lived in herds. Living in herds made migration much easier, which is a strong support for migration. But the lecture gives an example of Roosevelt elks to show that animals live in groups for various reasons,。
为了帮助大家高效备考托福,为大家带来托福TPO29口语Task6听力文本+题目+满分范文,希望对大家备考有所帮助。
托福TPO29口语Task6听力文本: Listen to part of a lecture in a business class. (female professor) OK, so, of course, businesses want to sell as many of their products as possible. Often a business sells mostly one type of product. But sales of this product may stop increasing because most potential customers have already bought it. In this situation, many companies will try to diversify, um, to develop or diverse product in order to increase sales. There are a couple of efficient ways that a company can diversify using some of their existing resources.One way a company can diversify is to use an existing technology, uh, technology that they already have to develop a new product. If a company already has some machines and technology to make a certain product, sometimes it can efficiently use that same technology to make a different product. For example, a company that makes televisions might start making computer monitors because the technology used to make these two products is very similar. So the company can use its existing technological resources to make the monitors. But with the monitors, it can reach new customers, people that wouldn’t buy television screens, like businesses that need to buy monitors for their employees’computers. Another way a company can diversify is to try to appeal to its existing customers, its customer base with a new product. One of a company’s most important resources is its existing customers and these customers might have other needs that the company could fulfill with a different product. For example, a company that sells skis might have a large customer base that enjoys winter sports like skiing down snowy mountains. So they might start making ski jackets. The same customers that buy skis would also need warm ski jackets to wear while they are skiing. And since they like the company’s skis, they might be more likely to buy the jackets with the company’s name on them. 托福TPO29口语Task6题目: Using points and examples from the lecture, explain two ways a company can diversify. 托福TPO29口语Task6满分范文: The first way for a company to diversify is to use existing technology to produce a new kind of products that need the similar technology and sell them to the customers who only need the new products. For example, a company that sells TV may use the technology of screen manufacturing to produce monitor for computers, and in this way it can expand its market by reaching the customers who don't need TV, but computers, like a company that needs to buy monitors for its employees. Another way is to createa new product and sell it to its existing customers who may have other needs. For example, a company selling skis may also produce ski-jackets and sell them to the consumers that have already bought their skis. Now that these customers must enjoy winter sports like skiing on snowy mountain, they will also need snow jackets to keep warm. And their preference of the ski brand will lead to their purchase of snow-jackets of the same brand. (168 words) 以上是给大家整理的托福TPO29口语Task6听力文本+题目+满分范文,希望对你有所帮助!。
托福TPO29综合写作阅读+听力原文+满分范文【雷哥托福整理】在备考托福写作的过程中,总是将托福的独立作文放在了第一位,但是实际上,综合作文也是占到了作文总分30分里面的50%的分值,不要等到分数出来了,才发现其实是综合作文的limited或者fair极大的影响了自己的分数。
雷哥托福小托君给大家分享TPO1-33综合作文部分的阅读和听力文本全集与综合作文的满分作文,以及满分作文的解析。
就是在自己做托福TPO模考之后,可以根据这里面的听力的文本,来检验自己的听力内容是否抓的足够好,尤其是要看写的够不够全!很多时候,我们的综合作文之所以分低,就是因为听力写的不全!TPO29 综合写作听力+阅读原文ReadingLarge numbers of dinosaur fossils have been discovered in deposits on Alaska's North Slope, a region that today experiences an extremely cold,arctic climate. One hundred million years ago, when those dinosaurs were alive, the environment of the North Slope was already inhospitable,especially during the winter when it experienced several months of total darkness. How did the dinosaurs survive the wintertime? Paleontologists have proposed that one of the most common North Slope dinosaurs, the elephant-sized edmontosaur (Edmontosaurus), survived the winter by migrating south to more hospitable regions. Several arguments support the migration hypothesis.First, the edmontosaur's diet supports the migration hypothesis.Edmontosaurs fed exclusively on plants. Since there would have been no plants growing during the cold and dark North Slope winter, it appears that the edmontosaur must have left for at least part of the year and migrated to more temperate zones to find food.Second, many edmontosaur skeletons have been unearthed from the same site. This suggests that edmontosaurs lived in herd. Many modern-day migratory animals, such as caribou and buffalo, live and migrate in herds as well. Moving in herds helps animals coordinate their migration.The finding that edmonotsaurs lived in herds further supports the migration hypothesis.Finally, edmonosaurs were physically capable of migrating long distances. To reach more hospitable regions, the edmontosaur had to migrate about 1,600 kilometers southward. To make such a journey, the edmontosaur needed to move at about five kilometers per hour for several weeks, which is certainly could do. These animals could run very fast, reaching speeds up to 45 kilometers per hour. It could have easily used its locomotive power to move to warmer climate during the harsh arctic winters.ListeningNow listen to part of a lecture on the topic you just read about.ProfessorThe hypothesis that the Edmontosaur migrated every winter is not convincing.First, the Edmontosaur did not have to migrate to find food. One hundred million years ago, the summer temperatures in the North Slope area were warmer than they are today. And remember, in arctic regions like the North Slope, the Sun shines 24 hours a day at the peak of the summer. The warm temperatures and extensive daylight created incredibly good growing conditions for plants, so much vegetation was produced during the summer that when the vegetation died as the winter came, there was a lot of nutritious dead vegetation around in the winter. The Edmontosaur could have easily lived on the dead plant matter during the winter.Second, just because Edmontosaurs lived in herds doesn’t mean they migrated.Animals live in herds for many other reasons. Living in herds, for example, provides animals with extra protection from predators. Having extra protection is useful even for the animals that live in the same area the whole year round. A modern example of this is the Roosevelt elk—a large plant-eater. Roosevelt elks live in the forests of the western United States. They live in herds but they do not migrate.Third, although adult Edmontosaurs were capable of migrating long distances, what about Edmontosaurs that were not yet adults? Juvenile Edmontosaurs were not physically capable of travelling the great distances required to reach warmer territories and would have slowed the herd so much that the herd never would have made it to its destination. The herd could not have left the juveniles behind because the juveniles would not have survived on their own. So the whole herd had to stay where they were and survive on the cold North Slope.由于篇幅有限,托福综合写作满分范文,在雷哥托福微信公众号获取。
Q1正确答案:D解析:harness作动词的意思“利用”;近义词是utilize。
这个单词后面出现了to,表目的或作用,整句话的意思是“水资源被用于减轻人和动物的劳动”。
Q2正确答案:C解析:根据选项在第一段中找对应进行排除,A对应该段第2句。
B的对应虽然没有直接在原文中提到,但是也可以有这层意思,可以作为待定选项。
但看到C 之后就可以排除B了,因为C和该段第1句直接冲突,因此选择C。
D对应这段的最后一句(出现了perhaps,与uncertainty近义)。
Q3正确答案:D解析:根据题干中的Throughout the roman empire定位到该段第2句,对于waterpower mill的修饰是increasingly sophisticated,也就是更复杂,更先进,因此选择D。
Roman empire的waterpower mill是horizontal-axis还是vertical-axis,和其设计是否基于Scandinavia地区的waterpower mill,它的设计是否受欢迎,文中均未提及Q4正确答案:A解析:在第1句话中,the applications of waterpower与上文the only uses of the waterpower mill 是并列关系,继续补充水力发电厂的作用,所以这里的applications指的是水力资源的应用,也就是使用。
因此选择A,水利的用处,put to use。
不要被B选项的improvement误导。
Q5正确答案:B解析:题干中scientific and technical investigation对应第四段第2句话,第3句意思是“输出的功率从1-60马力不等,水流越smooth,下落越慢,效率就越高,在此过程中几乎释放所有动能”。
根据这个结论,直接确定B正确。
文中没有提到小水车和大水车产生马力量的比较,排除A;水中的动能并不能改变,而是要尽可能的使其含有的动能释放出来,排除C;D中的overshot wheel对应本段最后一句,但是原文并没说这种轮就能输出高于60马力单位的能量。
为了帮助大家高效备考托福,为大家带来托福TPO29口语Task3阅读文本+听力文本+题目+满分范文,希望对大家备考有所帮助。
托福TPO29口语Task3阅读文本: Remove Old Bicycles from Campus Racks I noticed that there are bicycles locked to the campus bicycle racks that have not been moved for a long time. I think the university should remove these bikes from the racks and dispose of them. I recommend this action because, first of all, they will not be missed by anyone, since they apparently have been forgotten by their owners. More important, removing the bikes would help to free up space on the racks, thereby benefiting people who are actually using their bikes and need places to park them. 托福TPO29口语Task3听力文本: Now listen to two students discussing the letter. (woman) He's totally right about this, you know? (man) Well, I agree they should do it, but maybe it's not fair. (woman) What? Just assuming no one wants them? Well, judging from the conditions some of them are in, I think it's probably a safe assumption. I mean, some are missing parts like handlebars or wheels, and others are really rusty like they've been left outside in the rain for years. (man) Yeah, the ones with missing parts sure don't look like they are being used but what if some are?(woman) Well, to be sure, the university could always attach notes to them and say give the owners two weeks to remove them or they'd be removed by campus security. (man) Yeah, that'll probably work. (woman) Anyway, it'll be really big help if they were gone. (man) Oh, I know (woman) Because, I mean, especially like in front of the dining hall, there are lots of them there and it can be really hard to find a space. All the spaces are always taken there. (man) Yeah, it’s bad. Lots of people ride bikes these days. (woman) And since the university doesn't allow us to tie them to signposts, or fences or anything like that to park them, I always have to lock mine up in another building and walk over to the dining hall cause there’s hardly ever a space." 托福TPO29口语Task3题目: The woman expresses her opinion about the proposal in the letter. Briefly summarize the proposal. Then state her opinion and explain the reasons she gives for holding that opinion. 托福TPO29口语Task3满分范文: The writer of the letter suggests the university remove old bicycles from the racks, because they have been missed by their owners and this measure can save a lot of spaces for people using bikes. The woman in the conversation totally agrees with the proposal. First, she says that these bicycles have lost some parts such as handle bars or wheels, and many other bikes are rusty because of the rain. Or the university can attach notes on them to remind their owners to take them back, or they will be removed by the security. Secondly, the woman says that these old bikes take up a lot of spaces, and it is very difficult for other students to find a place to park. She always has to park her bike in another building, which is very inconvenient. So that’s why she agrees with the proposal. 以上是给大家整理的托福TPO29口语Task3阅读文本+听力文本+题目+满分范文,希望对你有所帮助!。
TPO29 听力解析Conversation‐1What is the conversation mainly about?A. What the deadline to register for a Japanese class is.B. Why a class the woman chose may not be suitable for her .C. How the woman can fix an unexpected problem with her class schedule.D. How first‐year students can get permission to take an extra class.答案:C解析:女生说:I am kinda confused about my schedule ....On class I registered for is missing. 说明女生的课程表有问题。
Why does the man tell the woman that Japanese classes are popular?A. To imply that a Japanese class is unlikely to be canceled.B. To explain why the woman should have registered for the class sooner.C. To encourage the woman to consider taking Japanese.D. To convince the woman to wait until next semester to take a Japanese class.答案:A解析:女生说: Do they cancel it?Assistant: I doubt it. Japanese class is very popular.助理是在解释他为什么觉得女生的假设不正确。
Why does the man ask the woman if she registered for classes online?A. To explain that she should have registered at th e registrar’s office.B. To find out if there is a record of her registration in the computer.C. To suggest a more efficient way to register for classes.D. To determine if she received confirmation of her registration.答案:D解析:Assistant:You registered online, right? Did you get confirmation letter?说明助手问她注册方式的原因是想确认她是否收到了确认信。
What does the man suggest the woman do?Click on 2 answers.A. Put her name on a waiting list.B. Get the professor to sign a form granting her permission to take the class.C. Identify a course she could take instead of Japanese.D. Speak to the head of the Japanese department.答案:BC解析:女生说我要去 get professor’s signatureAssistant: Well, you do对应选项 BAssistant: Well, if not, you have to find a different class.对应选项 CWhat does the man imply when he points out that the woman is a first‐year student?A. The woman has registered for too many classes.B. The woman should not be concerned if she cannot get into the Japanese class.C. The woman should not register for advanced‐level Japanese classes yet.D. The woman should only take required courses at this time.答案:B解析:Assistant: Yes, but according to our records, you are only in your first year here. If you don’t take class this semester, you still get time.也就是说 assistant认为女生还有很多时间去上语言课,不必太着急。
Lecture 1What does thhe professor mainly discuss?A. Cause of soil diversity in old‐growth forestsB. The results of a recent research study in a Michigan forestC. The impact of pedodiversity on forest growthD. How forest management affects soil diversity答案:A解析:Professor: But now I wanna discuss what is called pedodiversity......Ok. There were 3 different causes of pedodiversity.剩下的部分教授讲的就是 3个 causes,也就是 lecture的主要内容。
According to the professor, in what way is the soil in forested areas generally different from soil in other areas?A. In forested areas, the soil tends to be wamer and moister.B. In forested areas, the chemistry of the soil changes more rapidly.C. In forested areas, there is usually more variability in soil types.D. In forested areas, there is generally more acid in the soil.答案:C解析: A lot of different types of trees in an area might mean more pedodiversity.也就是在森林里有 more pedodiversity。
What does the professor suggest are the three main causes of pedodiversity in the old‐growth hardwood forests she discusses?Click on 3 answers.A. The uprooting of treesB. The existence of gapsC. Current forest‐management practicesD. Diversity of tree speciesE. Changes in climatic conditions答案:ABD解析:听三个主旨句,第一个是 species。
第二个是 another cause?后面的 gaps。
第三个是 Okay, and the third cause后面的 uprooting of trees。
Why does the professer mention radiation from the Sun?A. To point out why pits and mounds have soil with unusual propertiesB. To indicate the reason some tree species thrive in Michigan while others do notC. To give an example of a factor that cannot be reproduced in forest managementD. To help explain the effects of forest gaps on soil答案:D解析:For instance, without a tree to absorb radiation from the sun, tool for shade, the full intensity of that radiation reaches the ground. The soil where the tree used to be heats up. And without a tree to soak up moisture from the ground, the soilremains wetter than in the surrounding forest. With a high temperature and more moist conditions, the process of organic matter decompositions beats up.这些话是在解释 gap的作用。
Why does the professor consider pedodiversity an important field of research?A. It has challenged fundamental ideas about plant ecology.B. It has led to significant discoveries in other fields.C. It has implications for forest management.D. It is an area of study that is often misunderstood.答案:C解析: And when we better understand pedodiversity, we will be better able to predict the impact of forest management on soil.Why does the professor give the students an article to read?A. To help them understand the relationship between forest dynamics and pedodiversityB. To help them understand how to approach an assignmentC. To provide them with more information on pits and moundsD. To provide them with more exposure to a controversial aspect of pedodiversity答案:A解析:I want you to read it because it makes the point I only touched on..........As the article explains, forest dynamics affects pedodiversity.也就是关于 forest dynamics与 pedodiversity的关系。