Dưới đây là các cụm từ đồng nghĩa trong bài đọc Biological control of pests trong IELTS READING sách CAMBRIDGE IELTS 8 – Test 4 – Reading Passage 2 nhé.
| Keywords in questions | Similar words in the text |
| an imbalance in many ecologies around the world |
widespread ecological disorders |
| are no longer responding to most pesticides in use |
have developed resistance to a wide range of potent chemicals |
| cotton farmers began to use pesticides to ensure more cotton was harvested from each crop |
cotton farmers avidly took to pesticides as a sure measure to boost crop yield |
| pesticides were costing 50% of the total amount they spent on their crops |
50% of the financial outlay on cotton production was accounted for by pesticides |
| a number of pests |
many pests |
| with an innate immunity to pesticides |
with a built-in resistance to pesticides |
| bio-control is free from danger |
bio-control is safe |
| leaf-mining hispides blighted coconut trees |
coconut groves were plagued by leaf-mining hispides |
| wiping out water hyacinth |
the eradication of water hyacinth |
| Salvinia molesta plagues rice fields |
rice fields are infested by Salvinia molesta |
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Tags: ielts, IELTS READING
