1.选择题- (共6题)
1.科学家用纳米技术制造出一种“生物导弹”,可以携带DNA分子.把它注射入组织中,可以通过细胞的内吞作用的方式进入细胞内,DNA被释放出来,进入到细胞核内,最终整合到细胞染色体中,成为细胞基因组的一部分,DNA整合到细胞染色体中的过程,属于( )
2.科学兴趣小组偶然发现某植物雄株出现一突变体.为确定突变基因的显隐性及其位置,设计了杂交实验方案:利用该突变雄株与多株野生纯合雌株杂交,观察记录代中表现突变性状的雄株在全部子代雄株中所占的比率(用Q表示),以及子代中表现突变性状的雌株在全部子代雌株中所占的比率(用P表示).下列有关叙述不正确的是( )
3.科学兴趣小组偶然发现某植物雄株出现一突变体.为确定突变基因的显隐性及其位置,设计了杂交实验方案:利用该突变雄株与多株野生纯合雌株杂交,观察记录代中表现突变性状的雄株在全部子代雄株中所占的比率(用Q表示),以及子代中表现突变性状的雌株在全部子代雌株中所占的比率(用P表示).下列有关叙述不正确的是( )
4.科学兴趣小组偶然发现某植物雄株出现一突变体.为确定突变基因的显隐性及其位置,设计了杂交实验方案:利用该突变雄株与多株野生纯合雌株杂交,观察记录代中表现突变性状的雄株在全部子代雄株中所占的比率(用Q表示),以及子代中表现突变性状的雌株在全部子代雌株中所占的比率(用P表示).下列有关叙述不正确的是( )
5.科学兴趣小组偶然发现某植物雄株出现一突变体.为确定突变基因的显隐性及其位置,设计了杂交实验方案:利用该突变雄株与多株野生纯合雌株杂交,观察记录代中表现突变性状的雄株在全部子代雄株中所占的比率(用Q表示),以及子代中表现突变性状的雌株在全部子代雌株中所占的比率(用P表示).下列有关叙述不正确的是( )
2.单项选择- (共9题)
7.
Henry would rather that his girlfriend _________ in the same department as he does.
A.worked | B.works | C.had worked | D.would work |
8.
It is impolite to sit there with your feet _____ at somebody.
A.pointing | B.pointed | C.being pointed | D.point |
9.
If the babysitter cannot come tomorrow,do you mind________alone at home,doing his homework?
A.Fred’s leaving | B.Fred being left |
C.Fred’s having left | D.Fred having been left |
10.
Now that you’re grown up,you’d better spend your time just on the things you find_______.
A.worth doing them | B.worth being done |
C.worthy of doing them | D.worthy of being done |
11.
—What made Alice so upset? —______.
A.Peter’s leaving without saying goodbye | B.Peter left without saying goodbye |
C.Peter was leaving without saying goodbye | D.Peter had left without saying goodbye |
12.
Oil prices have risen________32 percent since last year,________a record $84.65 a barrel on Nov.9.
A.by;reached | B.by;reaching | C.by;to reach | D.to;reaching |
13.
The plan to be carried out next month needs________among the members of the labor union before________.
A.to discuss;carrying out | B.to be discussed;carried out |
C.discussing;being carried out | D.discussed;to be carried out |
14.
Traffic is bad, ________ in the city center during the rush hours.
A.particularly | B.terribly |
C.mostly | D.normally |
试卷分析
-
【1】题量占比
选择题:(6道)
单项选择:(9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:9
7星难题:0
8星难题:0
9星难题:0