2024年1月14日发(作者：)
为了帮助大家高效备考托福，为大家带来托福TPO9口语Task6听力文本+听力文本+题目+题目+满分范文，希望对大家备考有所帮助。 托福TPO9口语Task6听力文本：Listen to part of a lecture in a biology class.(female) We all know that insects like to eat plants. But some plants are able
to develop ways to protect themselves from insects. Today I'm gonna talk about some
ways plants defend , some plants have physical features that prevent
insects from landing on them. Like the passion plant, for example, its leaves have
little spiky hairs all over them. They're like spikes, sticking out of the plant that
are so numerous and dense that they prevent insects from landing on the leaves.
Basically there're just no room for the insects to land. And since insects can't land
on the leaves they can't eat them. So the little hairs serve as a physical feature
that help protect passion plant from right! But other plants protect
themselves using
themselves
using chemical
using
chemical defenses,
chemical
defenses, like
defenses,
like the
like
the potato
the
potato plant.
potato
plant. The
plant.
The potato
The
potato plant
potato
plant is
plant
is able
is
able
to release a chemical throughout its leaf system whenever an insect attacks it, starts
eating the leaf. So, say an insect starts eating a potato plant’s leaf, that will
cause the plant to react by releasing a chemical throughout its leaf system. The insect
swallows this chemical as it eats. And this chemical discourages the insect from
wanting to eat more of the plant. How? Well, the substance makes the insect feel full,
like it’s already had enough to eat. The insect no longer feels hungry so it stops
eating the plant. So, b y emitting this chemical, the potato plant protects itself
from insects." 托福TPO9口语Task6题目：Using points from the lecture, explain how the passion plant and the potato plant
defend themselves from insects. 托福TPO9口语Task6满分范文：According to the professor, there're two ways for plants to protect themselves
from insects. The first one is physical defense; some plants like passion plant have
physical features that prevent insects from landing on them. The passion plant has
little spiky hairs that cover the whole leave. Since the spiky hairs are numerous
and dense, the insects can hardly find room to stand on leaves, and therefore cannot
eat leaves. Another one is chemical defense, like the one potato plant uses. When
attacked by insects, the plant releases a chemical over its leaf system, which
discourages the insect from further eating the plant by making the insect feel full,
so the insect may think it's already had enough and stops eating. In this way the
potato plant protects itself from insects. (127 words)
以上是给大家整理的托福TPO9口语Task6听力文本+希望对你有所帮助!听力文本+题目+题目+满分范文，希望对你有所帮助!
