8. Every evening after work she will drive to the kindergarten to _______ her son.
A. pick out B. pick up C. pick off D. pick on
7. __________ other young men, he also enjoys pop music.
pared with B. In common with C .Except for D. Speaking of
6. Most of the students felt rather disappointed at the English party. They say that it ______ better organized.
A. had been B. had to be C. must have been D. could have been
5. There were 87 votes_______ of the proposal while 13 against it.
A. in favor B. in need C. in demand D. in want
4. The reason _______ he is late is _______ there was a breakdown on the railway.
A .why; why B. because; that C. that; because D. why; that
3. As soon as I got on the bus I realized that I________ my papers in the house.
A. left B. was leaving C. had left D. have left
2. I’d like to talk on _____ telephone, but I don’t prefer writing ______ letters.
A. a; the B. the; 不填 C. the; the D. a; 不填
第一節(jié) 單項(xiàng)填空(共15小題,每小題1分,滿分15分)
從A、B、C、D四個(gè)選項(xiàng)中,選出可以填入空白處的最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。
1. -----Excuse me, could you tell me where I could make a call?
-----Sorry, I’m a stranger here.
-----_____________.
A. Thanks a lot B. That’s a pity
C. Thanks anyway D. I’m sorry to hear it
34.請(qǐng)回答下列關(guān)于果蠅性狀遺傳的問題:
Ⅰ.(8分)果蠅的下列性狀分別由位于兩對(duì)常染色體上的兩對(duì)等位基因控制,分別用A、a和B、b表示.且基因A具有純合致死效應(yīng)。巳知黑身殘翅果蠅與灰身長(zhǎng)翅果蠅交配,F(xiàn)l為黑身長(zhǎng)翅和灰身長(zhǎng)翅,比例為l︰l。當(dāng)F1的黑身長(zhǎng)翅果蠅彼此交配時(shí),其后代表現(xiàn)型及比例為:黑身長(zhǎng)翅︰黑身殘翅︰灰身長(zhǎng)翅︰灰身殘翅=6︰2︰3︰l。請(qǐng)據(jù)此分析回答下列問題:
(1)果蠅這兩對(duì)相對(duì)性狀分別中,顯性性狀分別為 。
(2)F1的黑身長(zhǎng)翅果蠅彼此交配產(chǎn)生的后代中致死基因型有 ,占其后代的比例為 。
(3)F2中的黑身殘翅果蠅個(gè)體測(cè)交后代表現(xiàn)型及比例為 。
Ⅱ.(12分)果蠅的灰身對(duì)黑身是顯性,控制體色的一對(duì)基因B、b位于常染色體上;紅眼對(duì)白眼為顯性,控制眼色的一對(duì)基因H、h位于X染色體上.讓一只灰身紅眼雌果蠅與一只黑身紅眼雄果蠅雜交,得到的F1有灰身紅眼、灰身白眼、黑身紅眼、黑身白眼4種表現(xiàn)型,請(qǐng)回答:
、艑懗鲭s交親本的基因型:灰身紅眼雌果蠅 ,黑身紅眼雄果蠅 .
⑵F1雌果蠅的表現(xiàn)型為 ,比例為 .
⑶從F1中選取一只灰身紅眼雌果蠅與一只灰身紅眼雄果蠅進(jìn)行交配,獲得F2,若F2中只出現(xiàn)灰身紅眼和黑身紅眼兩種表現(xiàn)型,則F1灰身紅眼雌果蠅的基因型為 ,灰身紅眼雄果蠅的基因型為 ;若F2中出現(xiàn)了黑身白眼的類型,則F1灰身紅眼雌果蠅的基因型為 .
2010-2011學(xué)年度暑期補(bǔ)課階段考試高二試題
33.(5分)人類并指為顯性遺傳病(A控制),白化病是一種隱性遺傳病(b控制),已知控制這兩種疾病的等位基因都在常染色體上,而且是獨(dú)立遺傳。一家庭中,父親并指,母親正常,他們有一個(gè)患白化病但手指正常的孩子,如果他們?cè)偕粋(gè)孩子,則
(1)這個(gè)孩子表現(xiàn)正常的可能性是 。
(2)這個(gè)孩子只患白化病的可能性是 。只患一種病的可能性是 。
(3)這個(gè)孩子同時(shí)患有兩種病的可能性是 。
(4)這個(gè)孩子患病的可能性是 。
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