日韩城人网站,黄色大片网站在线观看,久久青青操

主動語態變為被動語態的步驟: (1)將主動句的賓語變為主語: 注意:如果主動句的賓語是代詞.需將其由賓格變為主格.如: Tom killed him. → He was killed by Tom. (2)將動詞改為"be+過去分詞". 注意: They held a meeting yesterday. → A meeting was held by them yesterday. 他們昨天開會了. (3)將主動語態的主語改為be-放在謂語動詞后. 注意:如果原主語是代詞.則應由主格變為賓格. He sang a song. → A song was sung by him. 【查看更多】

題目列表(包括答案和解析)

萘乙酸（NAA）是科學家通過化學的方法合成和篩選的在結構和生理作用方面與生長素相似的物質，其生理作用也與濃度密切相關，探究萘乙酸（NAA）對扦插枝條生根作用的最佳濃度范圍，在農業生產的應用上具有非常重要的意義。
　一、實驗原理：
萘乙酸與生長素一樣，對植物生長的調節作用具有___________________________性，即
_______________________________________________________________。（2分）
二、實驗過程與方法：
（1）取材；取山茶花植株生長良好的半木質枝條，剪成5—7cm，每段插條芽數相同。
（2）實驗：①將插條分別用不同的方法處理如圖1；②將處理過的插條下端浸在清水中，注意保持溫度（25～30℃）。
（3）記錄：小組分工，根據實驗數據，建立數學模型如圖2。

三、結果分析與評價：
（1）從圖2中，可得出的結論是_________________________________________          。
（2）插條若沒有生出不定根，其原因最可能是____________________________            。
（3）溫度、處理時間等要一致，其原因是_________________________________           。
（4）每組都選取10根插條，其目的是____________________________________           。

查看答案和解析>>

Many students get ill easily .They have to go to hospital and may miss a lot of classes. What can we do to keep healthy? Here are some tips:
Healthy food. You should eat less fast food but more vegetables and fruit. You’d better drink 500 ml milk every day .Remember to eat breakfast.
Enough exercise. Doing exercise is important. It makes you more athletic .You can play some sports after class or on weekends.
Happy smiles. Smile is a good way to make you healthy .Try to find things that can make you laugh .Remember that smile is the best medicine to cure(治療)your illness.
Good rest. If you want to get a good grade ,you must have a good rest .As a famous saying goes, “Early to bed and early to rise makes a man healthy ,wealthy（富有的）and wise（聰明的）.
【小題1】將劃線句子翻譯成漢語。_______________________________________.
【小題2】完成下列句子，每空詞數不限。
If you get ill, you have to __________________________and may __________________.
【小題3】完成下列句子，每空詞數不限。
You can play sports_________________ or___________

查看答案和解析>>

句型轉換。
1. The dress cost so much that she didn’t buy it.（用too … to …改寫）
The dress cost ___ ___ ___ her ___ buy.
2. It rained yesterday, so I stayed at home.（用because改寫）
____ it ____ yesterday, I ____ at home.
3. My parents will go to America in two weeks.（對劃線部分提問）
___ ____ ___ your parents ___ to America.
4. People use thermoses (熱水瓶)for keeping water warm.（改為被動語態）
Thermoses ____ ___ ___ ____ water warm。
5. I hardly ever meet him after he moved to another district.（對劃線部分提問）
____ ____ ____ you meet him after he moved to another district?
6. Collecting coins interests the small boy.（用interested改寫）
The small boy ___ ____ ___ ___ coins.
7. Basketball was invented by a Canadian doctor.（改為主動語態）
a Canadian doctor _______ ______.
8. Naismith thinks he can do it well.（改為過去時）
Naismith ____ he _____ do it well.
9. He divided the players into two teams of eleven.（改為同義句）
He ____ the players into two teams of eleven.
10. He might know anyone at the party.（改為表示否定推測的句子）
He ____ ____ know anyone at the party.

查看答案和解析>>

句型轉換
【小題1】Tom has never come to school, ? (改為反意疑問句)
【小題2】 Lisa's brother goes to the cinema twice a week. (對劃線部分提問)
______________________________________________?
【小題3】 I didn't know. Where is your home? (變為含賓語從句的復合句)
______________________________________________
【小題4】Sam made this model plane last year. (變為被動語態)
______________________________________________
【小題5】I used to get up early in the morning. ( 改為否定句 )
_________________________________________________

查看答案和解析>>

句型轉換

1.Tom has never come to school, ? (改為反意疑問句)

2. Lisa's brother goes to the cinema twice a week. (對劃線部分提問)

______________________________________________?

3. I didn't know. Where is your home? (變為含賓語從句的復合句)

______________________________________________

4.Sam made this model plane last year. (變為被動語態)

______________________________________________

5.I used to get up early in the morning. ( 改為否定句 )

_________________________________________________

查看答案和解析>>

Ⅰ單項選擇

1. B 2. C 3. D 4. B 5. C

6. B 7. B 8. A 9. A 10. A

11. A 12. C 13. D 14. A 15. A

16. A 17. C 18. B 19. C 20. C

21.B 22. D 23.B 24. C 25.D

26. A 27. C 28. B 29. C 30. B

Ⅱ、把下列句子改為被動語態

1. The boy was seen to run by me yesterday.

2. I was told that he would come back soon.

3. A lot of differences can be found by you between the two languages.

4. Are your flowers watered every day?

5. The big tree was blown down last night.

6. It is thought that he is right.

7. The bad food had not been thrown.

8. The trousers were not being mended by my mother.

9. He would not be taken to Beijing.

10. I was known by nobody in this town at that time.

同步練習冊答案

日日人人_亚洲美女在线视频_av手机在线播放_国产大片aaa_欧美中文日韩_午夜理伦三级

練習冊

高中

初中

小學