數(shù)詞:(1)掌握基數(shù)詞和序數(shù)詞的形式及用法,(2)掌握hundred/thousand/million等在具體數(shù)量修飾和不定數(shù)量中的運用,(3)熟練掌握時間及日期的表達方式. 【查看更多】

 

題目列表(包括答案和解析)

用適當?shù)拇~或數(shù)詞填空。
1. The boy is crying. I think ________ is hungry and wants ________ mother.
2. Helen is a student and Miss Smith teaches ________ English.
3. I'm old enough now. I can finish the work by ________.
4. Come on Monday or Wednesday. ________ day is OK.
5. —Are the keys ________, girl?
    —No, they are not ________.
6. Obey the traffic rules and learn to protect yourself. ________ is more important than life.
7. —What _______ do you want to have?
    —Thanks, that's enough.
8. Xiao Li is the right person who shows the foreigners around, for ________ of us can speak English.
9. —Which trousers are his?
    —The green ________ are his.
10. Tom often comes to see me. He is a friend of ________. 
11. September the ________ is Teachers' Day. Let's make some cards for our teachers.
12. The text is very easy. There are ________ new words in it.
13. —________ is wrong with my throat. I just feel thirsty.
     —Why not have ________ water?
14. —Shall I sit at this end of the boat or the other end?
     —If you keep still, you can sit at ________ end.
15. Our teacher asks us to read English ________ a day.
16. We enjoyed ________ at the party last night.
17. He has a dog. I want to have ________, too.

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根據(jù)所給基數(shù)詞，寫出相應(yīng)的序數(shù)詞。
1. two 　________
2. three   ________
3. four    ________
4. five 　________
5. eight   ________		 6. nine           ________
7. twelve 　   ________                    
8. fifteen 　    ________
9. twenty 　   ________
10. thirty-one  ________

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按要求寫出單詞的相應(yīng)形式。
1. three (序數(shù)詞)      
2. ninth (基數(shù)詞)
3. birthday (復數(shù))    
4. Jan. (完整形式)
5. October (縮寫形式)		 ______
______
______
______
______          		6. eight (序數(shù)詞)
7. 10th (完整形式)  
8. second (縮寫形式)
9. twenty (序數(shù)詞)    
10. thirty-first (基數(shù)詞)		 ______
______
______
______
______                                           

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按要求寫出相應(yīng)的基數(shù)詞或序數(shù)詞。
1. ten ______ (序數(shù)詞)         
3. twenty-five _______ (序數(shù)詞)
5. fifty-two _______ (序數(shù)詞)  
7. twenty-fifth _____ (基數(shù)詞) 
9. sixty-second _____ (基數(shù)詞)  		2. nine _______(序數(shù)詞)            
4. thirty-nine _______(序數(shù)詞)     
6. seventeenth _______(基數(shù)詞)                                             
8. ninety-ninth ______ (基數(shù)詞)    
10. eighty-eighth ______ (基數(shù)詞) 

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（6分）據(jù)圖回答下列問題：

（1）據(jù)圖1，若某植物幼苗已表現(xiàn)出向光性，且測得其向光面的生長素濃度為m，則背光面生長素濃度范圍是             。
（2）據(jù)圖1可知，除草劑滅草的原理是使雜草的生長素濃度大于       （填圖1中字母）。
（3）在探究生長素促進插條生根的最適濃度時，一名技術(shù)人員用幾種不同濃度生長素溶液處理插條基部，然后在沙床中培養(yǎng)，觀察生根情況。圖2為生長素促進枝條生根的情況。請結(jié)合圖1判斷，在下列各項濃度值中，最好選用（   ）
A．3mg·mL-1B．6 mg·mL-1C．9 mg·mL-1D．4.5 mg·mL-1
（4）生長素的主要作用是促進細胞縱向伸長，其作用機理如圖3所示，請回答下列問題：

①生長素作用的第一步是與細胞膜上的受體結(jié)合，形成“激素—受體復合物”，這一過程體現(xiàn)了細胞膜的              功能。
②實驗發(fā)現(xiàn)，細胞在持續(xù)生長過程中，細胞壁將發(fā)生一定變化，出現(xiàn)這種現(xiàn)象的原因是由于              （填細胞器）為細胞壁添加了新的成分。
③此外，Ca2+ 還能激活細胞中的轉(zhuǎn)錄因子，它進入細胞核后，能引起         酶催化mRNA的合成。

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