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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

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7. __________ other young men, he also enjoys pop music.

pared with  B. In common with  C .Except for  D. Speaking of

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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

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5. There were 87 votes_______ of the proposal while 13 against it.

   A. in favor  B. in need  C. in demand  D. in want

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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

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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

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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

試題詳情

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

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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

試題詳情

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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