Question 50: What is the main idea of the passage?         

Insect's lives are very short and they have many enemies, but they must survive long enough to breed and perpetuate their kind. The less insect-like they look, the better their chance of survival. To look "inedible" by imitating plants is a way frequently used by insects to survive. Mammals rarely imitate plants, but many fish and invertebrates do. The stick caterpillar is well named. It is hardly distinguishable from a brown or green twig. This caterpillar is quite common and can be found almost anywhere in North America. It is also called "measuring worm" or "inchworm". It walks by arching its body, then stretching out and grasping the branch with its front feet then looping its body again to bring the hind feet forward. When danger threatens, the stick caterpillar stretches its body away from the branch at an angle and remains rigid and still, like a twig, until the danger has passed.  Walking sticks, or stick insects, do not have to assume a rigid, twig-like pose to find protection; they look like inedible twigs in any position. There are many kinds of walking sticks, ranging in size from the few inches of the North American variety to some tropical species that may be over a foot long. When at rest their front legs are stretched out, heightening their camouflage. Some of the tropical species are adorned with spines or ridges, imitating the thorny bushes or trees in which they live.            

Leaves also seem to be a favorite object for insects to imitate. Many butterflies can suddenly disappear from view by folding their wings and sitting quietly among the plants that they resemble. 

 

 

A.

A: The feeding habits of insects

B.

B: Insects that are threatened with extinction

C.

C: How some insects imitate plants to survive?

D.

D: Caterpillars that live in trees

Đáp án và lời giải
Đáp án:C
Lời giải:

Đáp án C
Với câu hỏi main idea như thế này đừng có vội vàng rồi dịch hết cả đoạn sẽ rối cả lên đấy. Giờ chỉ tập trung vào những phần thầy in đậm trong đoạn thôi này (Thầy sẽ triển khai dưới dạng dàn ý cho dễ hiểu nhé) 

 "Câu dẫn dắt: Insect's lives are very short and they have many enemies, but they must survive long enough to breed and perpetuate their kind. The less insect-like they look, the better their chance of survival.

Câu chủ đề: (Câu thâu tóm ý chính đó): To look "inedible" by imitating plants is a way frequently used by insects to survive. Mammals rarely imitate plants, but many fish and invertebrates do.  => Diễn giải: Nói về việc mammals, fish, invertebrates đã inmitate để survive 

Các ý giải thích cho câu chủ đề:

+ The stick caterpillar is well named. It is hardly distinguishable from a brown or green twig. This caterpillar is quite common and can be found almost anywhere in North America. It is also called "measuring worm" or "inchworm." It walks by arching its body, then stretching out and grasping the branch with its front feet then looping its body again to bring the hind feet forward. When danger threatens, the stick caterpillar stretches its body away from the branch at an angle and remains rigid and still, like a twig, until the danger has passed.  Walking sticks, or stick insects, do not have to assume a rigid, twig-like pose to find protection; they look like inedible twigs in any position. There are many kinds of walking sticks, ranging in size from the few inches of the North American variety to some tropical species that may be over a foot long. When at rest their front legs are stretched out, heightening their camouflage. Some of the tropical species are adorned with spines or ridges, imitating the thorny bushes or trees in which they live.            
=> Cách ngụy trang của caterpillar (sâu)

 

+ Leaves also seem to be a favorite object for insects to imitate. Many butterflies can suddenly disappear from view by folding their wings and sitting quietly among the plants that they resemble." 
=> Cách ngụy trang của insects (côn trùng) 

Tóm lại: Đoạn văn được đi từ ý chính là cách để tồn tại => Cho ví dụ mình họa => Lập luận theo kiểu diễn dịch nhé. 

Thầy để link từ điển ở đây: Không biết thì bấm tra vào, phải tập tư duy bằng tiếng Anh. Thầy chỉ chỉ cho cách làm thôi:  http://dictionary.cambridge.org/ . Ngay chỗ search Ennglish thì gõ cái từ mình cần tìm vô 

- From Lý Duy Nguyễn with love 

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