托福阅读：American food crops

今天我们给大家带来的是American food crops这篇文章的解题思路及题目分析，希望大家能应用老师的思路，在自己的过程中多云用这些思路，相信大家的做题技巧会有提升。

What is the main purpose of the lecture ?

• A. To describe the trade in food crops between Europe and Americas

• B. To describe the introduction of American food crops to Europeans

• C. To describe the influence of American food crops on traditional Europeans

• D. To describe the difficulties of growing American food crops in European climates

引为主题的方式有三种

• 直奔主题式

• 背景引入式

• 离题式 TPO18，Conversation 2第1题

• So would it surprise you to learn that many of the foods that we today consider traditional European dishes that their key ingredients were not even known in Europe until quite recently, until the Europeans started trading with the native peoples in North and South America? I mean, you're probably aware that the Americas provided Europe and Asia with foods like squash, beans, turkey, peanuts. But what about all those Italian tomato sauces, Hungarian goulash, or my favorite, French fries, those yummy fried potatoes.

• 先介绍背景，然后用I mean来总结出自己的主旨，我们需要听I mean之后的三句话，得出应该是B

What does the professor imply about certain plants in the nightshade family?

• A. They grow best in Mediterranean climates

• B. Their leaves are high in nutritional value

• C. They were mistakenly believed to be related to potatoes

• D. They are dangerous when eaten by human beings

这道题是一道专业名词解释类的细节题，通常我们对于这个名词都是比较陌生的，但是我们需要注意当出现新名词的之后的解释。名词不知道可以，但是解释一定需要听的懂

• The Nightshade family is a category of plants which also includes many that you wouldn't want to eat, like mandrake, belladonna, and even tobacco. So it's no wonder that people once considered tomatoes and potatoes to be inedible too, even poisonous. And in fact,the leaves of the potato plant are quite toxic.

教授提到Nightshade的植物，都是有毒的，经过同意替换得出答案为D

What does the professor imply about Thomas Jefferson‘s attitude toward tomatoes?

• A It was typical of his unconventional way of thinking

• B It helped to advance his political career

• C It changed the eating habits of North Americans

• D It helped to make tomatoes popular in Europe

当提及新人物时要注意该人物对应的事件成就，或者态度等情况

• Student: But it seems like I heard didn't Thomas Jefferson grow them or something?

• Professor: Well, that's true. But then Jefferson is known not only as the third president of the United States but also as a scholar who was way ahead of his time in many ways. He didn't let the conventional thinking of his day restrain his ideas.

Not only，but also句型中but also之后的内容还是比较重要，确定答案为A

原文

According to the professor, what was the long-effect of the introduction of American corn and potatoes to Europe?

• A It had a negative effect on the nutritional intake of people living near the Mediterranean Sea

• B It contributed to a shift in the balance of power from southern Europe to northern Europe

• C It encouraged the development of new types of cuisine in southern Europe

• D It led to the failure of many native European grain crops

原文

• Potatoes soon spread to France and other Northern European countries. And as a result, the nutrition of the general population improved tremendously and population soared in the early 1800s and so the shift of power from southern to northern Europe continued.

信号词as a result以后跟出了答案，人口的增加最后导致了政权的迁移，最后我们确定答案为B

According to the professor ,what is one of the reasons why potatoes became popular in Ireland?

• A Potatoes were more nourishing than native Irish food crops

• B Potatoes grew better at higher altitudes than native Irish crops

• C Political leaders in Ireland encouraged the cultivation of potatoes

• D People in Ireland were not aware that potatoes are members of the nightshade family

原文

• And then, well as I said potatoes weren't really popular at first. But when they finally did catch on which they did first in Ireland around 1780.Well,why do you suppose it happened? Because potatoes have

the ability to provide abundant and extremely nutritious food crop, no

other crop grew in North Europe at the time had anything like the

number of vitamins contained in potatoes.

在对话中的设问句一般功能均为强调，之后为重点，我们能够得出答案应该为A

Listen again to part of the lecture Then answer the question

What can be inferred about the professor when she says this

• A She expects the student to provide an answer to her question

• B She is surprised by the student‘s question

• C She thinks that she knows what the student was going to ask

• D She expects other students in the class to express their opinions

在句中老师打断了学生的回答，一般有两种情况1老师已经知道了学生要说什么2学生答案是错的。这里答案是C她已经知道了学生的答案。

关于American food crops这篇的习题就先跟大家分析到这里，如果同学们的处于瓶颈期或者英语基础比较薄弱，

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