--- As far as I know, he is the last one to help others. He be prepared to give you a hand, though.

A. can B must

C. might

D. should

【1】甲地区

A．土地利用类型以林地为主

B．动植物资源丰富，生态环境稳定

C．农业生产的有利因素为积温高

D．农作物只能一年一熟

【2】造成甲、乙两地差异的最主要原因是

A．季风强弱不同 B．海陆位置不同

C．纬度位置差异 D．海拔高低悬殊

A．in it B．in C．in that D．in which

A. which; that

B. that; that

C. which; but

D. that; but

—No，they finally decided ________.

A．not to leave B．not leaving

C．not to D．not to be leaving

A．它们的组成元素是相同的

B．耐腐蚀的性能不同

C．它们都属于钢，因此物理性质是一样的

D．构成普通钢和不锈钢的主要元素是铁，因此它们的化学性质完全相同

【1】现今的“南大荒”人已将橡胶种植北界从17°N扩大至24°N。其主要原因是

A.全球气候变暖 B.保鲜冷藏技术的进步

C.农业技术的发展 D.农业政策的支持

【2】“西大荒”发展棉花生产的有利气候条件有

①有冰雪融水作为灌溉水源 ②夏季高温

③光照强，日照时间长 ④气温年较差大

A.①② B.②③ C.①④ D.③④

【3】与中国其它商品粮基地相比，“北大荒”基地的特点有

①地势低平 ②土壤肥沃 ③人均耕地多 ④单产高 ⑤复种指数高

A.③ B.②③ C.①②③ D.①②③④⑤

【1】工业区最适宜布局在

A．A区 B．B区 C．C区 D．D区

【2】国道改道的主要原因是

A．与火车站对接，实现铁路公路联运

B．城市土地价格的上涨

C．推动郊区城市化，带动郊区经济的发展

D．缓解城区的交通拥堵和大气污染

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Learning English is challenging because of the various rules and exceptions to the rules. The best way to learn English is to hear it spoken and repeat the words as you hear them. 【1】You will learn how to make English a daily part of your life in order to learn to speak it quickly.

【2】 Ask a friend to help you write letters of English alphabet on index cards. You should write a letter on each card. Practise the letters by mixing up the cards and saying the letters. You can ask your friend to help you pronounce the letters and quiz you on your knowledge.

Make your own videos in English. If you have a video camera, you can tape yourself speaking English and practice along with your own video. 【3】 Watch your videos daily, and repeat what is being said.

Get a private tutor. A professional English instructor can give you one-on-one instruction that will help you understand the rules of English. Your instructor can teach you how to write and speak English. 【4】You can also inquire at your local community college.

Watch movies with English subtitles. When watching a movie in your native language, use the English subtitles so you will understand the connection between your language and English.

【5】You will make mistakes, and that is OK. You need to practice English as much as possible in order to quickly learn to speak the language fluently.

A. Learn the English alphabet.

B. Use every opportunity to speak English.

C. You can subscribe some English magazines to learn English.

D. Constant repetition is the key to remembering words in English.

E. If you have any difficult points, you can consult your dictionary at any time..

F. You can find an English tutor by placing an advertisement in your local newspaper.

G. You can make a play in which you and a friend are having a simple conversation in English.

（1）图中A因素表示_______________，是制约环境人口容量的首要因素。

（2）图中B因素表示_______________，该因素的发展与变化，必然带来人类获取和利用资源的手段、方法等方面的改变，从而带来环境人口容量的变化。

（3）图中C因素表示人口的__________________，不同时期和不同地域的C因素并不相同，对环境人口容量产生较大影响。

（4）图中D因素表示__________________，它对环境人口容量的影响也很大。