托福閱讀最后一道主旨題怎么做

2024-04-23 11:06:55 來源：中國教育在線

托福閱讀最后一道主旨題怎么做，相信這個問題是許多正在準備留學的同學關心的一個問題，那么下面小編就來和大家說一說，感興趣的您趕緊往下了解吧。

托福閱讀最后一道主旨題怎么做

托福閱讀最后一道主旨題怎么做？托福閱讀最后一道大題是六選三，即從六個選項中選取三個，加上給出的句子，合成對全文的概括。正確選項的特征是"the most important ideas in the passage"，是文章的核心信息;錯誤選項的典型特征是文章細節(jié)。

托福文章題目：MINERALS AND PLANTS

下面分別是沒段段首的信息：

Paragraph 1 Research has shown that certain minerals are required by plants for normal growth and development.

Paragraph 2 Mineral deficiencies can often be detected by specific symptoms such as chlorosis (loss of chlorophyll resulting in yellow or white leaf issue), necrosis (isolated dead patches), anthocyanin formation (development of deep red pigmentation of leaves or stem), stunted growth, and development of woody tissue in an herbaceous plant.

Paragraph 3 Much of the research on nutrient deficiencies is based on growing plants hydroponically, that is, in soilless liquid nutrient solutions.

Paragraph 4 While mineral deficiencies can limit the growth of plants, an overabundance of certain minerals can be toxic and can also limit growth.

Paragraph 5 Scientists have known for some time that certain plants, called hyper accumulators, can concentrate minerals at levels a hundredfold or greater than normal.

Paragraph 6 Only recently have investigators considered using these plants to clean up soil and waste sites that have been contaminated by toxic levels of heavy metals - an environmentally friendly approach known as phytoremediation.

題目：

Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some answer choices do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.

Plants need to absorb certain minerals from the soil in adequate quantities for normal growth and development.

1. Some plants are able to accumulate extremely high levels of certain minerals and thus can be used to clean up soils contaminated with toxic levels of these minerals.

2. Though beneficial with lower levels, high levels of salts, other minerals, and heavy metals can be harmful to plants.

3. When plants do not absorb sufficient amounts of essential minerals, characteristic abnormalities result.

4. Because high concentrations of sodium chloride and other salts limit growth in most plants, much research has been done in an effort to develop salt-tolerant agricultural crops.

5. Some plants can tolerate comparatively low levels of certain minerals, but such plants are of little use for recycling nutrients back into depleted soils.

6. Mineral deficiencies in many plants can be cured by misting their roots with a nutrient solution or by transferring the plants to a soilless nutrient solution.

正確選項是123。不難發(fā)現，選項1對應第5和6段;選項2對應第4段;選項3對應第2段。這是因為，所謂的文章主要信息，其實就是某一段或幾段的主旨信息。因此，如果有的選項不確定，可以回到文中把每段的主旨信息找到，作為判斷的依據。

托福閱讀備考要清楚的三個問題

托福閱讀復習時間安排

關于復習的時間安排：弄完詞匯以后，就應該著手突擊一下閱讀了。如今各種各樣的模擬題猶如英語輔導班一樣大量涌現。不會出現我們早期考生有題舍不得做的情況了。但也不能太急功近利，單詞沒弄好就硬上閱讀，有時候會適得其反。用1周的時間大量的突擊，也是對單詞的一個鞏固。找到感覺以后就可以開始下面的復習了。復習聽力口語作文的日子里，每天一定要少做3篇文章的題量，按照考試的時間要求，千萬不可放松。做得多了，就可以把閱讀當作一種放松了。ETS的托福閱讀文章能教給我們各種學科的基礎知識。

托福閱讀必須要讀懂每字每句

托福閱讀考試中許多考生認為閱讀文章時必須要讀懂每字每句，事實上，這是不必要的。托福閱讀考試中，即使遇到陌生的詞，但是根據上下文的意思以及自己的一些常識判斷，也不太會影響對文章的理解。特別是托福閱讀這種題目涉及面廣，信息量大的形式，掌握閱讀和答題的技巧，對在托福閱讀考試中是會有很大幫助的。

在托福閱讀中，甚至可以擴展到ETS所有考試的閱讀題目中，如果要用一個詞來概括的話，那就是paraphrase，意譯。無論是題干還是正確選項，大都能在原文中找出一句話來與之相對應。即題目是原文的意譯。這種意譯是通過同義詞來完成的。即題干中多用近義詞來對原文中的句子進行替換，來達到提出問題或者提出正確答案的意思。準確把握意譯，是多數題目中準確在原文中定位信息、或者在迷惑選項中選出正確的那個，都有著重要的作用。

托福閱讀先看題目還是先看文章

關于先看題目還是先看文章的問題。也就是做題時間安排的問題。在此問題上我與有的朋友也有過爭執(zhí)。我個人習慣是先用5—7分鐘的時間通讀全文，然后平均每個問題有1分鐘的時間來回答。由于對問題的回答建立在了熟悉全文的基礎上，每個問題又有足夠的時間返回全文，每個選項都一一進行斟酌。這樣準確率比較高。但有的朋友本著居家過日子的心，認為1000多字的文章只出十幾個題，必然有一些信息是沒用的。這樣通讀全文就會浪費掉一些時間，不如先看題再回去找來的痛快。每個人都應該通過考前大量的練習來制定出為適合自己的方法。