题目内容

【题目】美国凤凰号着陆探测器项目小组发布信息说: 凤凰号在加热火星土壤样本时鉴别出有水蒸汽产生,从而确认火星上有水。读下表中的相关数据,结合所学知识回答下列各题。

行星

质量(地球为1)

体积(地球为1)

公转周期

自转周期

赤道面与轨道面之间的交角

地球

1.00

1.00

1年

23时56分

23°26

火星

0.11

0.15

1.9年

24时37分

23°59

【1】升空后的凤凰号不属于下列哪个天体系统的天体

A.太阳系 B.银河系 C.河外星系 D.总星系

【2】地球与火星都是太阳系中的行星,有关太阳系行星的叙述,不正确的是

A.八大行星绕日公转的轨道面几乎在一个平面上

B.水星、金星、火星在体积、质量、组成物质三方面与地球较相似,称为类地行星

C.在地球轨道两侧,分别是金星和火星轨道

D.金星、火星等行星能自行发出可见光,这几颗行星在夜空显得很明亮

【3】在八大行星中,人类首选火星作为探索生命起源和进化的行星,主要是因为火星上的一些现象与地球上的一些现象相似,主要表现为

火星有厚厚的可供生命呼吸的大气层 火星、地球自转周期的长度都比较适中

火星、地球与太阳的距离都比较适中 火星上和地球上都有四季变化,且四季长度一样

A.①②③ B.②③ C.①②③④ D.①③

【答案】

【1】 C

【2】D

【3】B

【解析】

试题分析:

【1】升空后的凤凰号依然位于太阳系内,所以它不属于河外星系。

【2】八大行星公转轨道在同一平面上,地球轨道两侧分别是金星和火星,行星不能自行发光,依靠反射太阳的光我们才能看见,水星、金星、地球和火星属于类地行星,土星和木星属于巨行星。

【3】火星表面只有稀薄的大气层,火星上有四季变化,但由于火星的公转周期较地球上长得多,故四季长度不可能一样,火星与地球相似主要表现为火星、地球自转周期的长度都比较适中;火星、地球与太阳的距离都比较适中。

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Whether you’ re a child, teenager, young adult or are middle-aged, respect for your parents is an important value. Your parents are the people who raised you, devoting time, energy and money to your development. 1 No matter your age, there are 5 ways to show respect.

Respect their belongings.

One important way to show respect is to show regard for the things important to your parents. For younger children, this may mean not touching jewelry or other valuable things. For grown children, respect may mean returning a borrowed tool in good condition and on time. Lack of respect for a parent’s belongings is a violation of personal boundaries. 2 And never borrow things without asking first.

Punctuality .

3 Therefore, always be on time. For teenagers, showing up on time means coming home by curfew(宵禁).Adult children should show up on time for family dinners or events, or to pick a parent up for a medical appointment. Call if you’re going to be late because parents worry about children, no matter their age.

4

Remembering birthdays, anniversaries and other special days is a sign that you honor your parents. Make plans to take them to lunch or dinner or bake a cake or cookies. Most parents don't expect expensive gifts, but a handmade gift is always appreciated, A phone call from a grown child who lives too far for a visit is a welcome sign of respect.

Be kind.

Kind words and affection are simple ways to showspan> respect. Tell your parents you love them. Listen and allow your parents to speak without interruption. Show a sincere interest in what your parents have to say. Be patient with your parents and don’t rush them. Never talk back or be rude or disrespectful. Acknowledge your parents’ achievements. 5

A. Be a good listener.

B. Celebrate with them.

C. Lateness indicates a lack of respect.

D. Treat your parents the way you would like to be treated.

E. And they love you unconditionally throughout your life.

F. Being respectful helps build positive relationships with others.

G. Don't take advantage of your parents’ kindness and generosity.

【题目】(B)

Stress: Good or Bad?

Stress used to be an almost unknown word, but now that we are used to talking about it, I have found that people are beginning to get stressed about being stressed.

In recent years, stress(1)______(regard) as a cause of a whole range of medical problems, from high blood pressure to mental illness. But like so many other things, it is only too much stress(2)______ does you harm. It is time you considered that if there were no stress in your life, you would achieve a little. If you are stuck at home with no stress, then your level of performance will be low. Up to a certain point, the more stress you are under, the (3)_____(good) your performance will be. Beyond a certain point, though , further stress will only lead to exhaustion, illness and finally a breakdown. You can tell when you are over the top and on the downward slope, by asking yourself (4)_______ number of questions. Do you, for instance, feel that too much is being expected of (5)______, and yet find it impossible to say no? Do you find yourself getting impatient or(6) _____(annoy) with people over unimportant things?... If the answer to all those questions is yes, you had better(7)______(control ) your stress, as you probably are under more stress than is good for you.

To some extent you can control the amount of stress in your life. Doctors have worked out a chart showing how much stress is involved in various events. Getting married is 50, pregnancy 40, moving house 20, Christmas 12,etc. If the total stress in your life is over 150, you are twice as likely (8)_______ (get )ill.

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