1.选择题- (共7题)
2.有丝分裂与减数分裂过程中都能发生的现象是（ ）
①DNA复制和有关蛋白质的合成 ②纺锤体的形成
③同源染色体配对和分离 ④着丝点的分裂
⑤非同源染色体的自由组合 ⑥同源染色体间的交叉互换．
5.人类的肤色由A/a、B/b、E/e三对等位基因共同控制，A/a、B/b、E/e位于三对同源染色体上．AABBEE为黑色，aabbee为白色，肤色深浅与显性基因个数有关，例如，基因型为AaBbEe、AABbee与aaBbEE等与含任何三个显性基因的肤色一样．若双方均为含3个显性基因的杂合体婚配（AaBbEe×AaBbEe），则子代肤色的基因型和表现型分别有多少种？（ ）
6.人类的肤色由A/a、B/b、E/e三对等位基因共同控制，A/a、B/b、E/e位于三对同源染色体上．AABBEE为黑色，aabbee为白色，肤色深浅与显性基因个数有关，例如，基因型为AaBbEe、AABbee与aaBbEE等与含任何三个显性基因的肤色一样．若双方均为含3个显性基因的杂合体婚配（AaBbEe×AaBbEe），则子代肤色的基因型和表现型分别有多少种？（ ）
7.小鼠A基因决定黄色皮毛，R决定黑色皮毛．同时具有A、R基因时表现灰色皮毛，只有a、r基因时表现白色皮毛．现有一只灰色雄鼠和一只黄色雌鼠交配，统计多次交配产下的子代的表现型比例如下：黄色 {#mathml#}{#/mathml#} ，灰色 {#mathml#}{#/mathml#} ，黑色 {#mathml#}{#/mathml#} ，白色 {#mathml#}{#/mathml#} ．则亲本的基因型为（ ）
2.单项选择- (共11题)
8.
Well, you know, English is my . So it is my best choice.
| A．talent | B． strength | C．ability | D．skill |
9.
Have you got these jeans in larger size? This pair is a bit too small around waist.
| A．/; the | B．a; the | C．the; / | D．a; a |
10.
We have bought so much food now that Suzie won’t be with us for dinner.
| A．may not | B． mustn’t | C．can’t | D．needn’t |
11.
If only I had got up a little earlier this morning! I the bus by only a minute and waited half an hour for another.
| A．was missed | B．have missed | C．miss | D．missed |
12.
Jim went to answer the phone. , Harry started to prepare lunch.
| A．Meanwhile | B．Nevertheless | C．Besides | D．However |
13.
volleyball is her main focus, she’s also great at basketball.
| A．Since | B．Once | C．While | D．Unless |
14.
Mary is a humorous and warm-hearted woman and that is she is a most popular person in her community．
| A．why | B．because | C．how | D．whether |
15.
Children who are not active or diet is high in fat will gain weight quickly.
A whose B what C which D that
A whose B what C which D that
16.
Mrs Black doesn’t believe her son is able to design a digital camera, ______ ?
| A．doesn’t she | B．does she | C．is he | D．isn’t he |
17.
---Try not to work yourself too hard. Take it easy.
--- Thanks. _________
--- Thanks. _________
| A．So what? | B．No way | C．What for? | D．You， too. |
18.
-The Modern Art Exhibition in the City Museum has been cancelled.
-Oh,no!______.
-Oh,no!______.
| A．It’s a pity | B．Tt doesn’t matter |
| C．I knew it already | D．It’s not interesting at all |
3.完形填空- (共1题)
试卷分析
-
【1】题量占比
选择题:(7道)
单项选择:(11道)
完形填空:(1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：2
5星难题：0
6星难题：6
7星难题：0
8星难题：3
9星难题：0