雅思阅读真题(Part 2)

War of the plants

Part 2 · 考频:高频 · 最近考试:2026.4.18

文章内容(节选)

Professor John Lovett from New England University, Australia, describes some of the ways in which plants ensure their own survival.

 

A 

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题目与答案

  1. an example of a plant's use of chemicals in its reproductive process
    • A
    • B
    • C
    • D
    • E
    • F

    答案:D

    原文定位:recent research on the common thorn apple, Datura stramonium;has found that two powerful chemicals are released from the seed during the early stages of germination;In fact, it is necessary for the chemicals to be released from the seed coat so that the seed can germinate

    同义替换:「reproductive process」↔「released from the seed during germination」,「example of a plant」↔「thorn apple」

  2. how some plants use a kind of glue to discourage attack
    • A
    • B
    • C
    • D
    • E
    • F

    答案:B

    原文定位:In other plants of the same family the sacs contain a natural adhesive and the unsuspecting insect landing on such a leaf and rupturing a trichome sac is held onto the plant, unable to depart

    同义替换:「a kind of glue」↔「natural adhesive」,「discourage attack」↔「unable to depart」,「plants use」↔「trichome sacs release adhesive」

  3. two examples of non-chemical methods of defence in plants
    • A
    • B
    • C
    • D
    • E
    • F

    答案:A

    原文定位:spinifex has developed tightly rolled leaves which reduce the effects of drought stress;Many plants, such as the sunflower, have hairy leaves which are rough to the touch;unpleasant on the tongue

  4. a definition of the term allelopathy
    • A
    • B
    • C
    • D
    • E
    • F

    答案:C

    原文定位:Chemical interactions that occur between plants are known as allelopathy

    同义替换:「definition of the term allelopathy」↔「are known as allelopathy」

  5. descriptions of how plants use chemicals to discourage predator
    • A
    • B
    • C
    • D
    • E
    • F

    答案:B

    原文定位:In these structures a tiny sac is carried on the hair;The sac contains chemicals which may perform a range of functions. For example, an insect landing on a tomato leaf and rupturing the sac is exposed to a toxic chemical which will deter it from feeding on that plant in future;In the leaves of the nettle plant these trichomes resemble miniature hypodermic syringes;a shot of the chemical is discharged though the "needle" and into the skin of the animal. The irritation the chemical causes is a deterrent against future threat

    同义替换:「use chemicals」↔「toxic chemical」,「discourage predator」↔「deterrent against future threat」

  6. benefits of using plant-based chemicals to control weeds in agricultural areas
    • A
    • B
    • C
    • D
    • E
    • F

    答案:F

    原文定位:Harnessing allelopathy is highly attractive to the farming industry;Enhancing allelopathic activity in crop and pasture plants could reduce this enormous bill. Developing and harvesting natural herbicides might also offer advantages in addressing environmental concerns about the over-use of synthetic chemicals

    同义替换:「benefits」↔「offer advantages」,「plant-based chemicals」↔「natural herbicides」,「control weeds in agricultural areas」↔「crop and pasture plants」

  7. a description of the characteristics of allelopathic chemicals
    • A
    • B
    • C
    • D
    • E
    • F

    答案:E

    原文定位:Allelopathic chemicals function in quite subtle ways. Generally they are active in small quantities, they are effective only with certain other plants, they act by disrupting the plant's natural process and they have no known residual effects. It has also been found that the activity these chemicals may be synergistic

    同义替换:「characteristics of allelopathic chemicals」↔「function in quite subtle ways」

  8. an example of a physical characteristic that helps one plant conserve water
    • A
    • B
    • C
    • D
    • E
    • F

    答案:A

    原文定位:Spinifex grass, a plant native to Australia, provides a notable example. Adapted to life in the hot, desert inland, spinifex has developed tightly rolled leaves which reduce the effects of drought stress

    同义替换:「physical characteristic」↔「tightly rolled leaves」,「conserve water」↔「reduce the effects of drought stress」,「example」↔「spinifex grass」

  9. 22 The " hypodermic syringes" of the nettle plant are an example of glandular trichomes.
    • TRUE
    • FALSE
    • NOT GIVEN

    答案:TRUE

    原文定位:Some families of plants such as the Solanaceae;feature glandular trichomes;In the leaves of the nettle plant these trichomes resemble miniature hypodermic syringes

    同义替换:「hypodermic syringes」↔「trichomes of the nettle plant」

  10. Allelopathic plants grow more successfully than plants that rely only on physical features.
    • TRUE
    • FALSE
    • NOT GIVEN

    答案:NOT GIVEN

  11. 24 New research into synthetic herbicides is largely focused on individual allelopathic chemicals.
    • TRUE
    • FALSE
    • NOT GIVEN

    答案:FALSE

    原文定位:It has also been found that the activity these chemicals may be synergistic;that is;two or more such substances may combine to produce an effect that is greater than the effects of the substances acting in isolation;These are the very attributes which are being sought in the current development of synthetic hertpicides

    同义替换:「individual」↔「two or more」

  12. 25 Herbicides cost Australian farmers over A$200 million a year.
    • TRUE
    • FALSE
    • NOT GIVEN

    答案:FALSE

    原文定位:as at least half of the more than a $200-million annual cost of crop protection in Australia is spent on herbicides

    同义替换:「over」↔「more than」

  13. 26 The two main points of this article are that plants can defend themselves in a number of ways and that
    • combating weeds is a major problem for Australian farmers.
    • considerable research has been carried out into the use of plant chemicals.
    • Australian plants have unique methods of self-protection.
    • chemicals found in weeds can have practical benefits for agriculture.

    答案:chemicals found in weeds can have practical benefits for agriculture.

    原文定位:Harnessing allelopathy is highly attractive to the farming industry;Developing and harvesting natural herbicides might also offer advantages in addressing environmental concerns;Weeds produce powerful allelopathic chemicals that inhibit competitors; these characteristics are being sought in the development of synthetic herbicides

    同义替换:「chemicals found in weeds」↔「allelopathic chemicals from weeds」,「practical benefits for agriculture」↔「natural herbicides, reduce cost, better for environment」

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雅思阅读真题:War of the plants(Part 2 · 高频 · 2026.4.18考试)(含答案)| 鸭圈雅思