1.选择题- (共12题)
5.为探究茉莉酸（植物生长调节剂）对离体培养的成熟胡杨细胞质壁分离的影响，将细胞分别移到不同的培养液中继续培养3天，结果如表．下列叙述错误的是（ ）
组别 | 培养液中另添加的成分 | 结果 | |
NaCl | 茉莉酸 | ||
① | + | - | 部分细胞质壁分离 |
② | + | + | 细胞正常，无质壁分离 |
③ | - | - | 细胞正常，无质壁分离 |
注：“+”表示有添加，添加后NaCl浓度为100mmol•L﹣1，茉莉酸浓度为10﹣3mg•L﹣1；“﹣”表示无添加．
6.为探究茉莉酸（植物生长调节剂）对离体培养的成熟胡杨细胞质壁分离的影响，将细胞分别移到不同的培养液中继续培养3天，结果如表．下列叙述错误的是（ ）
组别 | 培养液中另添加的成分 | 结果 | |
NaCl | 茉莉酸 | ||
① | + | - | 部分细胞质壁分离 |
② | + | + | 细胞正常，无质壁分离 |
③ | - | - | 细胞正常，无质壁分离 |
注：“+”表示有添加，添加后NaCl浓度为100mmol•L﹣1，茉莉酸浓度为10﹣3mg•L﹣1；“﹣”表示无添加．
10.
为探究酵母菌的细胞呼吸，将酵母菌破碎并进行差速离心处理，得到细胞质基质和线粒体，与酵母菌分别装入A～F试管中，加入不同的物质，进行了如下实验（见下表）
试管编号 | 细胞质基质 | 线粒体 | 酵母菌 | |||
A | B | C | D | E | F | |
葡萄糖 | - | + | - | + | + | + |
丙酮酸 | + | - | + | - | - | - |
氧气 | + | - | + | - | + | - |
注：“+”表示加入了适量的相关物质，“﹣”表示未加入相关物质．
2.单项选择- (共13题)
13.
Lucy is a girl of great musical _________, and I’m sure she will become a well-known musician sooner or later.
| A．ability | B．sense | C．value | D．potential |
14.
Why do we have to _________ Sue’s selfish behavior? We have to teach her to care for others.
| A．keep up with | B．put up with |
| C．catch up with | D．come up with |
15.
I don’t want to express any opinions on the plan until it has been _________.
| A．tried out | B．watched out | C．come out | D．let out |
16.
Our monitor was absent. Otherwise I _________ the chair.
| A．would not take | B．didn't take |
| C．hadn't taken | D．wouldn't have taken |
17.
He gave up smoking to____________ the money for his son’s education.
| A．set out | B．set aside |
| C．set up | D．set down |
18.
After living there for one year, they have _________there.
| A．accustomed to working | B．accustomed to work |
| C．been accustomed to working | D．been accustomed to work |
20.
Do let your mother know all the truth. She appears______ everything.
| A．to tell | B．to be told |
| C．to be telling | D．to have been told |
21.
It is reported that the children from the earthquake-stricken areas are in _________ need of love and attention.| A．typical | B．concrete | C．desperate | D．actual |
22.
The winner of the Grand Slams said that he had owed his success to many people, his parents_________.
| A．after all | B．by chance |
| C．on purpose | D．in particular |
23.
---When did he meet his wife for the first time？
---It was _________ he came back from Africa that year _________ he met his wife.
---It was _________ he came back from Africa that year _________ he met his wife.
| A．when; then | B．not until; that | C．not; until | D．only; when |
24.
In no country other than Britain, it has been said, ________ experience four seasons in the course of a single day.
| A．people can | B．you can | C．can it | D．can one |
试卷分析
-
【1】题量占比
选择题:(12道)
单项选择:(13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：5
5星难题：0
6星难题：7
7星难题：0
8星难题：1
9星难题：0