为应对全球气候变化,彰显大国责任和担当,我国提出 “ 二氧化碳排放力争于 2030 年前达到峰值, 2060 年前实现碳中和 ” 的庄严目标。为了实现这一目标,下列做法 错误 的是 ( )
A .大力开展植树造林 B .垃圾分类回收处理
C .开发风能等清洁能源 D .使用一次性餐具
Walking is good for health. So I ________ go to school on foot.
A . ever B . never C . hardly D . often
亲爱的同学:本堂英语测试完之后,三年的初中学习生活就结束了。请你以 “How to learn English” 为题写一篇英语短文,把你三年来的英语学习经验介绍给下一届的初一同学,说说英语学习的重要性、谈谈你是如何学习英语的、以及你对他们学习英语的建议。
参考词语: important, as much as possible, write down
提示问题: ●Why do you learn English?
● How do you learn English?
● What is your advice to them?
要求:
1 、卷面整洁(无污迹),书写工整(有美感)。
2 、条理清楚,句式规范。全文词数 80 词左右,短文开头已给出,不计入总词数。
3 、内容尽量包括提示信息,可适当发挥;文中不得出现个人真实信息。
How to learn English
Dear younger sisters and brothers, as we all know, English is used very widely in the world. ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
为了探究小球自由下落时的运动,某物理实验小组的同学用照相机每隔相等的时间自动拍照一次,拍下小球下落时的运动状态,如图甲所示.
( 1 )小球在做 ______ (选填 “ 匀速 ” 或 “ 变速 ” )直线运动,其理由是 ______ .
( 2 )图乙中四个速度随时间变化的关系图像,能反映出该小球下落运动的是 ______ .
—Confucius Institute (孔子学院) has been set up in many other countries.
—Yes, Chinese is _______ spoken in those countries. I am proud of that as a Chinese.
A. hardly B. widely C. never D. seldom
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Durbeyfield sat down upon the grassy land by the roadside, putting his basket before him. In a few minutes, a youth from his village appeared in the distance. On seeing him, Durbeyfield held up his hand, and the boy quickened his steps and came near.
“Boy, take up that basket! I want you to do something for me.”
The skinny boy frowned ( 皱眉 ), “who are you then, John Durbeyfield, to order me about and call me ‘boy’? You know my name as well as I know yours!”
“Do you, do you? That’s the secret — That’s the secret! Now obey my orders, and Fred, I don’t mind telling you that the secret is that I’m one of a noble race ( 贵族 ) — it has been just found out by me this present afternoon.” And as he made the announcement, he luxuriously ( 奢侈地 ) lay himself upon the land among the flowers.
The boy stood before Durbeyfield, and looked at him from head to foot.
“Sir, John D’ Urberville — that’s who I am,” continued Durbeyfield. “Do you know such a place as Greenhill?”
“Yes. I have been there to Greenhill fair ( 集市 ).”
“Well, under the church of that city there lie my ancestors ( 祖先 ) — hundreds of them — in coats of jewellery. There is not a man here who’s got greater and nobler ancestors than I.”
“Oh?”
“Now take up that basket, and go on to the Pure Drop Inn, telling them to send a horse and carriage ( 马车 ) with a servant ( 仆人 ) here quickly, to carry me home. And when you’ve done that, go on to my house with the basket, and tell my wife to put away that washing, because she needn’t finish it, and wait till I come home, as I’ve news to tell her.”
As the boy stood in doubt, Durbeyfield put his hand into his pocket, and produced a shilling (a unit of money used in Britain until 1971).
“Here is for your work, son.”
This made a difference.
“Yes. Sir John. Thank you.”
The boy took up the basket, and set out at once.
1 . What did Durbeyfield ask Fred to do?
A . Listen to a story. B . Find out a secret.
C . Send messages for him. D . Drive a horse and carriage for him.
2 . Which of the following about Durbeyfield is TRUE?
A . He did believe he was a noble. B . He wanted to play a trick on Fred.
C . He was the richest man in the city. D . He used to live in Greenhill.
3 . What made the boy willing to work for Durbeyfield?
A . Durbeyfield’s secret. B . Durbeyfield’s order.
C . His visit to Greenhill fair. D . The unit of money.
4 . What is most probably the relationship between Durbeyfield and Fred?
A . Father and son. B . Neighbors.
C . Close friends. D . Master and servant.
下列实验仪器常用于实验室制取气体,回答下列问题:
( 1 ) 标号为 E 的仪器名称是 ___________ ;
( 2 ) 用大理石和稀盐酸反应制取 CO 2 ,并用向上排空气法收集。
①组装制取装置时,可选用图中的 A 、 G 、 H 、 I 、 K 和 ___________ ;
②检验 CO 2 是否收集满的操作是 ___________ ;
( 3 ) 用下图装置验证 CO 2 的部分性质,若 X 为澄清石灰水,则 ①中可以观察到的现象是 ___________ 。若 X 是水, ②中能观察到紫色石蕊试纸变红,若②中紫色石蕊试纸没有变红,则 X 可能是 ___________ ( 填序号 ) 。
A . NaOH 溶液 B . CaCl 2 溶液 C .浓硫酸 D .稀盐酸
下列运算中,正确的是( )
A.3a+2a2=5a3 B.a﹒a4=a4 C.a6÷a3=a2 D.(-3x3)2=9x6
(2019·门头沟一模)下列中国古代工艺中,不涉及化学变化的是 ( )
(1)如图所示,一束光从空气斜射入水中,已知人射光线AO。请画出反射光线OB和折射光线OC。
(2)如图所示,轻质杠杆OMN上挂一重物,为使杠杆在图中位置平衡,请在N端画出最小力的示意图。
分生组织的细胞具有旺盛的分裂能力。下列不属于分生组织的是( )
A .皮肤生发层 B .茎的形成层 C .枝芽生长点 D .根尖分生区
坐在向前行驶汽车里的小亮看见路旁的树木向后运动,他是以 ______ 为参照物,司机要求他必须系好安全带,因为汽车紧急刹车时,人由于 ______ 将继续向前运动,可能造成碰撞伤害。
下列实例与采用的生物技术搭配不正确的是( )
A .利用大肠杆菌生产胰岛素 —— 转基因技术
B .太空椒的培育 —— 杂交育种
C .草莓的 “ 试管苗培育 ”—— 植物组织培养
D .小羊 “ 多莉 ” 的诞生 —— 克隆技术
如图,已知直线 ,直线
分别与
、
交于点
、
.请用尺规作图法,在线段
上求作点
,使点
到
、
的距离相等.(保留作图痕迹,不写作法)
(2019·娄底)将①-⑤句连缀成语意连贯的一段话,排序正确的一项是( )
①像文韬武略的辛弃疾沦为田舍菜翁,把一腔孤愤化为词间沟壑,青史留名。
②苦而不言不是什么亏都吃下去,而是少抱怨,因为所有的苦难还得自己去解诀。
③喜而不语是不炫耀,不能为了白己高兴而让别人不快乐。
④苦而不言,喜而不语,是一种人生智慧。
⑥像炎樱常在经济困难的好友张爱玲面前大谈投资理财,最后两人感情淡谟。
A.②⑤③①④ B.④②①③⑤ C.⑤①④②③ D.②④③⑤①
下列叙述能反映南亚气候特征的是( )
A.南亚各地受东南季风影响大,降水很多
B.南亚大部分地区气候特征是全年高温多雨
C.南亚热带季风气候的显著特征是一年可分为三季
D.南亚气候的显著特征是四季分明,春暖、夏热、秋凉、冬冷