Biodiversity(生物多样性), or biological diversity, is a wide-ranging concept that cov
题型：不详难度：来源：
Biodiversity(生物多样性), or biological diversity, is a wide-ranging concept that covers all the different kinds of plant and animal species present on earth. Environmentalists believe that many millions of species exist. As all these living organisms are dependent on each other in some way, biodiversity is desirable. Any loss to the planet is actually a loss for mankind as well, and it is our responsibility to try and save Earth’s biodiversity.
Biodiversity has a vital role to play in the evolution（演变）of species. Species become extinct, but new species evolve, and this is how a balance is maintained. This may sound pretty simple, but it takes millions of years for changes to take place.
Biodiversity is also very important to the stability of food webs. Damage to them can mean disaster for an entire ecosystem. The extinction of a single animal species can put huge pressure on the numerous other species dependent on it.
Biodiversity also has an important role to play in human society. Apart from being the most intelligent species on earth, human beings are also the most dependent. We depend on nature to meet our basic needs. When we change the balance of nature to create our cities and bring about our technical advances, we knowing or unknowing cause great damage to the ecosystem. This must be understood, and the damages must be reversed（颠倒）in any way they can to ensure that the balance of the ecosystem is maintained.
小题1:We learn from the first paragraph that_________.
A biodiversity can be seen
B all living species are found on earth.
C people everywhere are aware of the importance of biodiversity
D the loss of any species can affect humans
小题2:Why can change in food webs lead to disaster?
A Because it can make people suffer from disease
B Because it can put huge pressure on some species
C Because it takes a long time for such changes to take place
D Because it will damage ninety-nine percent of species
小题3:What does the underlined word probably mean?
A 画线 B Peace C Strength D Variety
小题4:We learn from the last paragraph that __________.
A humans are as independent as they are intelligent
B the balance of the ecosystem is easily maintained
C nature has given us a lot
D nature is taking revenge on us
小题5:Which of the following may be the best title for this passage?
A Food Webs are Closely Related to Biodiversity.
B Biodiversity Plays a Very Important Role in Evolution
C How Biodiversity Affects Human Society.
D Understanding Biodiversity and Its Importance.
答案
小题1:D
小题2:B
小题3:A
小题4:C
小题5:D
解析
举一反三
Everyone has got two personalities（性格）-the one that is shown to the world and the other that is secret and real. You don’t show your secret personality when you’re awake because you can control your behavior, but when you’re asleep, your sleeping position shows the real you. In a normal night, of course, people frequently change their positions. The important position is the one that you go to sleep in.
If you go to sleep on your back, you’re a very open person. You normally trust people and you are easily influenced by fashion or new ideas. You don’t like to displease people. So you never express your real feelings. You’re quite shy and you aren’t quite sure of yourself.
If you sleep on your stomach, you are a rather secretive person. You worry a lot and you’re always easily upset. You always stick to your own opinions or judgment, but you don’t raise your hopes too much. You usually live for today not tomorrow. This means that you enjoy having a good time.
If you sleep curled up（蜷缩）, you are probably a very nervous person. You have a low opinion of yourself and so you’re often defensive. You’re shy and you don’t normally like meeting people. You prefer to be on your own. You’re easily hurt.
If you sleep on your side, you have usually got a well—balanced（平衡的） personality. You know your strengths and weakness. You’re usually careful. You believe in yourself. You sometimes feel anxious, but you don’t often get sad. You always say what you think even if it makes people rather angry
小题1:You may find the passage in .
A. a science magazine B A guide book
C. a sports newspaper D. a story book
小题2:When does the sleeping position best show your secret personality?
| A．In the daytime | B．At the beginning of sleep |
| C．At night | D．During the deep sleep |
| A．on curled up | B．on her stomach | C．on her back | D．on her side |
| A．易怒的 | B．攻击性的 | C．外向的 | D．有戒心的 |
Sleeping on your side is the best way of sleeping
Changing positions will cause sleeping problems.
Sleeping positions show people’s secret personalities.
Enough sleep makes people look better and healthier.
For many years the United States and the other countries used gold and silver as money. Paper money was used to stand for the holdings(储备)of both gold and silver. The value of silver was limited to that of gold. Fifteen ounces(盎司) of silver had the same value of one ounce of gold. These values did not change until after 1860 when mines(银矿)in the west of the United States began to 1 large amounts of silver. This extra amount of silver caused the price of silver to 2 . Then fifteen ounces of silver would no longer buy one ounce of gold. In 1871 Germany declared(宣布)that it would not support its paper money with silver any more. Instead, it would use only gold. Other countries of Europe quickly 3 the same. The United States passed a law in 1973 that prevented the government from using silver as money. Western silver producers protested(抗议)loudly and put much pressure on the 4 makers. Five years later a new law was 5 . It said that the government must buy four and half million ounces of silver each month. The new law increased the amount of silver money. The country had two kinds of quite different views on the issue(发行)silver money. Businessmen, bankers and other rich men wanted to 6 the use of silver money because it made the dollar less valuable. But farmers, laborers and the others who owned the money not only wanted silver money but also wanted an unlimited supply of it.
| 小题1: |
|
| 小题2: |
|
| 小题3: |
|
| 小题4: |
|
| 小题5: |
|
| 小题6: |
|
The Xin’an Street Community(社区)began three programs not long ago.
The Neighborhood Clean-up Program
Every Sunday at 5:00pm, the neighbors begin cleaning Xin’an Street from one end to the other. The head of the Community, Zhao Fuqin, said, “The first Sunday, only eleven people came, but we picked up over seven big bags of rubbish (垃圾)from the sidewalk and street. The next weekend, twenty people came, and filled eight rubbish bags. Now the neighborhood really looks great!”
The Neighborhood Watch Program
The neighbors on Xin’an Street began this program to look for problems in the neighborhood and to call the police if necessary. The neighbors all say the watch has already helped.
SunYan, aged 60, a retired teacher, said, “In the past, I felt afraid at night. Now I know my neighbors are watching for trouble. ” According to the police, there are fewer problems on Xin’an Street. “Calls to 110 went down last month. Criminals knew that the people on Xin’an Street were watching, so they stayed away,” said a policeman.
The Neighborhood Fitness Program
A Health Club was built last month, where the neighbors can do different kinds of sports like basketball, ping-pong ball, tennis, etc. “Every morning you can see groups of neighbors running, dancing and playing Taijiquan. We have come to realize the importance of taking exercise,” said Chen Jinliang, a businessman of 45.
The community has more plans. “We plan to start the Kids Care Program for children. We are going to build an after-school club. And we want to have a picnic for everyone in the neighborhood!” said Zhao Fuqin.
小题1:When do the neighbors of the Clean-up Program clean Xin’an Street?
| A．Every Saturday morning. |
| B．Every Saturday afternoon. |
| C．Every Sunday morning. |
| D．Every Sunday afternoon. |
| A．A retired teacher. |
| B．The head of Xin’an Street Community. |
| C．A businessman. |
| D．A policeman. |
| A．罪犯. | B．乞丐. | C．强盗. | D．邻居. |
| A．the Clean-up Program |
| B．the Watch Program |
| C．the Fitness Program |
| D．the Kids Care Program |
| A．there are no problems now |
| B．an after-school club was built last month |
| C．the neighbors have a picnic every Sunday |
| D．the environment is getting nicer and cleaner now |
Newcastle is beginning to draw tourists from all corners of Europe. It’s one of the fastest developing cities in the United Kingdom. It is said most visitors come here to see the famous soccer team play. The mood of the locals is often changed by the success or failures of the local team.
Newcastle’s most popular place is the Gate. It’s in the center of the city and has many attractions including bars, restaurants, sports bars, pubs and so on. During a home game it becomes a real home to happiness.
Culture and local history lovers can make their dreams come true by taking one of the local city tour buses. They come and leave every few minutes and stop at all the important historical sites in the city. Also the seats and the environment on the buses are comfortable. It’s the best way to see the city without tiring yourself out or getting cold. Places such as the Hancock Museum and Millennium Bridge are must-see attractions. But be careful if you’re short of time, Newcastle is a big place. So you should be prepared to kill a few hours on one of these buses.
If you want to watch the local team play soccer in the St. James Park, remember to book a ticket as early as possible. The locals are crazy soccer fans, and you’ll find it hard to get a ticket if you don’t wait in the queue early.
As you can see, Newcastle is a fantastic city with so much to be offered and so many things to see. You’re sure to have a wonderful time here!
小题1:From the passage we know Newcastle is most famous for its_______.
| A．soccer team | B．city restaurants | C．rich culture | D．historical sites |
| A．can go to the Gate | B．can take a city tour |
| C．must go to St James Park | D．must drive a car |
| A．history lovers | B．historical sites |
| C．city tour buses | D．culture lovers |
| A．St. James Park | B．The Hancock Museum |
| C．the Gate | D．the Tower Bridge |
| A．Tourists will enjoy delicious food and have a good time in the Gate. |
| B．It’s usually easy to get a ticket for a local soccer team play. |
| C．Many world famous soccer matches are held in Newcastle every year. |
| D．Newcastle is a very small city with many famous attractions. |
| A．introduce the culture and history of Newcastle |
| B．tell people the popularity of soccer teams in Newcastle |
| C．introduce the characters of people in Newcastle |
| D．encourage people to visit Newcastle |
Anger is a kind of feeling. Many things can make you angry. When your teacher gives you too much homework, when your team loses an important game, when a friend borrows your favorite thing and then breaks it, you can get really angry. Usually, your body tells you when you are angry. For example, you breathe(呼吸) faster, your face turns red, and you may want to break something or hit(打) someone, but sometimes, you hide(隐藏) your anger. For example, you may hide it in your heart. The problem is that if you do this, you may get a headache or your stomach may hurt. In fact, it’s not good to hide your anger, and it’s important for you to get angry sometimes. But anger must be let out in the right way, without hurting others or yourself. When you get angry, you can talk about it with other people It’s helpful to talk about your anger with an adult(成年人,大人), such as a parent, a teacher, etc. When you talk about anger, those bad feelings can start to go away. Here are some other things you can do when you start to feel angry: talk to a good friend; count from 1 to 100; give someone a hug(拥抱); go for a bike ride; think about good things, etc. Remember that how you act when you are angry can make everything better or worse. Don’t let your anger control you.
小题1:You may not get angry when __________.
A. there is too much homework on this weekend
B. your favorite basketball team wins the game
C. a friend breaks your favorite thing
小题2:________ shows that you are not angry.
A. Taking a faster breath
B. Getting a headache
C. Wanting to protect someone
小题3:According to the passage, you can do everything when you get angry except(除了) __________.
A. go for a bike ride
B. think about good things
C. say bad things to the people around you
小题4:The underlined(画线的) word “control” in the last paragraph（段）means _______ in Chinese.
| A．控制 | B．连接 | C．帮助 | D．失去 |
A. anger B. excitement C. happiness
最新试题
- 我们穿的衣服通常是由纤维织成的，常见的纤维有棉花、羊毛、涤纶等。小明灼烧棉花、羊毛、涤纶三种纤维得到下列气味：纤维编号①
- 下图为“某区域水循环和岩石圈物质循环示意图”，其中①②③代表三大类岩石。读图完成1~2题。 1、关于图中水循环的叙述正确
- 已知：如图，在四边形ABCD 中，∠A=∠C，∠B=∠D，求证：四边形ABCD是平行四边形。
- 计算：（a2+ab+b2）（a2-ab+b2）．
- 凡是不履行法律规定的义务或者做出法律所禁止的行为，都是[ ]A、违法行为B、违反道德规范的行为C、犯罪行为D、违
- 如图所示，在光滑水平面上有一辆小车A，其质量为mA＝2.0 kg，小车上放一个物体B，其质量为mB＝1.0 kg.如图甲
- 某校研究性学习小组对福州某段内河水质的状况进行相关的调查研究。 （1）图8所示的自制净水器中的__________物质，
- 某温度下，在2 L的密闭容器中，X、Y、Z三种物质随时间变化的曲线如图所示。由图中数据分析：该反应的化学方程式为：
- （8分）在下列物质中选择相应的序号填空：①甲烷②乙烯③溴乙烷④甲苯⑤1-丁醇⑥乙酸乙酯⑦苯酚⑧乙二酸（1）分子结构为正四
- 【题文】已知，则=（ ）A．B．C．D．
热门考点
- 以椭圆的右焦点为圆心，且与双曲线的渐近线相切的圆的方程为 .
- 已知△ABC面积为24，将△ABC沿BC的方向平移到 △A"B"C"的位置，使B"和C重合，连结AC"交A"C于D，则△
- 下列有关文学常识的表述，有误的一项是（ ）A．“歌”“行”“引”“吟”均为古代乐府诗歌体裁，其格律一般较自由，形式有
- 给出下列五个命题，其中正确命题的序号为______．①函数y=|sin（2x+π3）-13|的最小正周期是π2；②函数y
- 用所给动词的正确形式完成短文，并将答案依次填在短文后面相应的横线上。 Once upon a time, there
- 我国坚持以公有制为主体、多种所有制经济共同发展的基本经济制度决定了 分配制度。A．按劳分配为主体、多种分配方式
- 因式分解：8m2n+2mn=______．
- 一个数的立方根是它本身，则这个数是[ ]A.0B.1，0C.1，-1D.1，-1或0
- 历史学家黄仁宇说：“苏联在第二次大战时之作为与帝俄在第一次大战时之作为不同，有目共睹，而且当中相距只20年，斯大林能实际
- 如图所示，一辆汽车沿水平地面匀速行驶，通过跨过定滑轮的轻绳将一物体A竖直向上提起，在此过程中，物体A的运动情况是( )
© 2017-2019 超级试练试题库,All Rights Reserved.