辛硫磷是一种有机磷杀虫剂,为测定其对不同虫态红火蚁的致死剂量,现将原药溶于丙酮中配制不同浓度的辛硫磷药剂点于红火蚁胸部,然后记录24 h死亡虫数并计算LC50(杀死50% 防治对象的药剂浓度),结果如下:
相关叙述不正确的是( )
| A．实验中辛硫磷药液的浓度范围要根据预实验结果确定 |
| B．实验中每个药剂浓度的处理均设多次重复遵循的是平行重复原则 |
| C．本实验的对照组是用等量丙酮点于红火蚁胸部 |
| D．有翅雌蚁虫态的红火蚁对辛硫磷最敏感 |
The film star is very funny. He always makes us__________ in his movies.
| A．laugh | B．laughs | C．laughing | D．to laugh |
Yancheng Nature Reserve is ________ ideal home for red-crowned cranes.
| A．a | B．an | C．the | D．/ |
书面表达
请根据下面的提示，介绍一下你和你的朋友Peter外貌、性格等方面的不同，并谈一谈你对朋友的看法，怎样才能能为你的朋友。可适当进行拓展。 词数，80 词左右。
参考词汇： serious, exercise, funny, outgoing
| I |
Peter |
| 14岁 |
14岁 |
| 高的 |
矮的 |
| 外向，风趣 |
严肃 |
| 运动 |
阅读，音乐 |
| … |
… |
补全对话
A. Hi, Jack! Can you go out this Friday night ?
B: Yes, I can. ________?
A: I want to go to a movie. Let’s go together.
B:___ __ What kind of movies do you like?
A:_____ _____.
B: Oh…Why do you like scary movies ?
A:____ _____.
B: Exciting ? I think they are scary. I like comedies.
A:_____ _____ .There is a very funny comedy on.
B: Great. See you this Friday.
A: See you!
句型转换
I watched an interesting movie. (改为否定句)
I _______ _______an interesting TV show.
She goes to the movies maybe once a month.(划线部分提问)。
______ ______ _____ she go to the movies.
Jim is taller than Mike.(改为同义句)。
Mike is______ ______ Jim.
I think Zhou Jielun is the best singer in China.
______ _____ _____ _______ is the best singer in China.
do ,they, mind, situation, not ,comedies(.)(连词成句)
______________________________________________________.
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