1.选择题- (共12题)
7.下列属于生态系统功能过程描述的是

①生产者的遗体、残枝、败叶中的能量被分解者利用,经其呼吸作用消耗
②在植物→鼠→蛇这条食物链中,鼠是初级消费者,第二营养级
③蜜蜂发现蜜源时,就会通过“跳舞”动作“告诉”同伴去采蜜
④绿色植物将大气中的二氧化碳转化为有机物进入生物群落,最后再经过呼吸作用回到大气中

①生产者的遗体、残枝、败叶中的能量被分解者利用,经其呼吸作用消耗
②在植物→鼠→蛇这条食物链中,鼠是初级消费者,第二营养级
③蜜蜂发现蜜源时,就会通过“跳舞”动作“告诉”同伴去采蜜
④绿色植物将大气中的二氧化碳转化为有机物进入生物群落,最后再经过呼吸作用回到大气中
8.下列属于生态系统功能过程描述的是

①生产者的遗体、残枝、败叶中的能量被分解者利用,经其呼吸作用消耗
②在植物→鼠→蛇这条食物链中,鼠是初级消费者,第二营养级
③蜜蜂发现蜜源时,就会通过“跳舞”动作“告诉”同伴去采蜜
④绿色植物将大气中的二氧化碳转化为有机物进入生物群落,最后再经过呼吸作用回到大气中

①生产者的遗体、残枝、败叶中的能量被分解者利用,经其呼吸作用消耗
②在植物→鼠→蛇这条食物链中,鼠是初级消费者,第二营养级
③蜜蜂发现蜜源时,就会通过“跳舞”动作“告诉”同伴去采蜜
④绿色植物将大气中的二氧化碳转化为有机物进入生物群落,最后再经过呼吸作用回到大气中
9.如图2所示,一质量为M的探空气球在匀速下降,若气球所受浮力F始终保持不变,气球在运动过程中所受阻力仅与速率有关,重力加速度为g.现欲使该气球以同样速率匀速上升,则需从气球吊篮中减少的质量为 ( )

2.单项选择- (共8题)
13.
Our manager has gone to Paris, so I have to deal with all the letters during his ________.
A.appearance | B.distance | C.absence | D.presence |
14.
He recommended a reporter to us who has ________ outstanding talent for writing and is known for his sympathy for ________ poor.
A.an; the | B.an; 不填 | C.不填;不填 | D.the;the |
15.
The doctor has worked with patients of this kind for eight years, so he knows what ________ in his job.
A.expected | B.to be expecting | C.expects | D.to expect |
16.
The families of the trapped miners’ are ________ to get any information about their relatives from the rescuing center.
A.deserving | B.sticking | C.hating | D.dying |
17.
On feeling the earthquake,the teacher stayed calm in the front of the classroom,________ all the students to rush out of the classroom as quickly as possible.
A.urging | B.hoping | C.advising | D.encouraging |
18.
His ________ description of his adventure in the forest made us want to have a try ourselves.
A.magic | B.vivid | C.relevant | D.awesome |
19.
I finally persuaded her to see the new film “If You Are The One II” directed by Mr. Feng, ________ she didn’t want to.
A.even if | B.now that | C.so that | D.as if |
试卷分析
-
【1】题量占比
选择题:(12道)
单项选择:(8道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:8
7星难题:0
8星难题:0
9星难题:0