首页 > (C)Some people say we needto plant trees in placeswhere rock concerts orconferences are held inorder
(C)Some people say we needto plant trees in placeswhere rock concerts orconferences are held inorder
题目简介
(C)Some people say we needto plant trees in placeswhere rock concerts orconferences are held inorder
题目详情
(C) Some people say we need to plant trees in places where rock concerts or conferences are held in order to absorb the carbon dioxide created by the event. This picture shows how trees can help. Photosynthesis （光合作用） ①Photosynthesis takes place when there is sunlight. ② Carbon dioxide in air enters the leaves through tiny holes called stomata ( 气孔). ③ Leaves contain chlorophyll ( 叶绿素 ) which traps the sun's energy. ④ Plant's roots gather water from the soil. ⑤ Leaves use chlorophyll and sunlight to change the water and carbon dioxide into food, or sugar, for the plant. ⑥ Oxygen is released into the air. 63. According to the passage, which of the following plays an important part in catching the sun's energy? A. Roots B. Branches C. Leaves D. Trunks 64. What is the best title of the diagram(图表)? A. How trees absorb carbon dioxide? B. How the air can be made cleaner? C. Trees play an important part in our daily life. D. How trees get food in the soil? 65. What can be inferred from the passage? A. the food for trees is made from the water and sugar in the soil B. photosynthesis can't take place at night C. photosynthesis can take place at any time D. trees help little in improving the air conditions 66. According to the passage, where should more trees be planted? A. near the river B. near the cinema C. along the highway D. on the mountain
题目简介
(C)Some people say we needto plant trees in placeswhere rock concerts orconferences are held inorder
题目详情
(C)
Some people say we need
to plant trees in places
where rock concerts or
conferences are held in
order to absorb the carbon
dioxide created by the
event. This picture shows
how trees can help.
Photosynthesis （光合作用）
①Photosynthesis takes place
when there is sunlight.
② Carbon dioxide in air enters
the leaves through tiny holes
called stomata ( 气孔).
③ Leaves contain chlorophyll
( 叶绿素 ) which traps the
sun's energy.
④ Plant's roots gather water
from the soil.
⑤ Leaves use chlorophyll and
sunlight to change the water
and carbon dioxide into food,
or sugar, for the plant.
⑥ Oxygen is released into the air.
63. According to the passage, which of the following plays an important part in catching the sun's energy?
A. Roots B. Branches C. Leaves D. Trunks
64. What is the best title of the diagram(图表)?
A. How trees absorb carbon dioxide?
B. How the air can be made cleaner?
C. Trees play an important part in our daily life.
D. How trees get food in the soil?
65. What can be inferred from the passage?
A. the food for trees is made from the water and sugar in the soil
B. photosynthesis can't take place at night
C. photosynthesis can take place at any time
D. trees help little in improving the air conditions
66. According to the passage, where should more trees be planted?
A. near the river B. near the cinema
C. along the highway D. on the mountain
答案
小题1:C
小题2:A
小题3:B
小题4:B