The salted fish is produced with a large amount of salt, which later turns into nitrites(亞硝酸鹽). When nitrites reach our stomach, they turn into another kind of chemical that can cause cancer.

So does this mean we can't eat salted fish anymore?

“People don't need to worry too much. Cancer is concerned with how often you eat certain foods and how much of them you eat，” Huang said. If you really like eating salted fish, you can eat a small amount once or twice a month. Meanwhile, you should also eat more fruit and vegetables that are rich in vitamin C, as this can help to prevent the formation of nitrites.

In fact, there are many foods that we often eat that are thought to cause cancer, such as pickles(咸菜), areca palms(檳榔) and so on.

Although these foods may bring cancer, it doesn't mean a person will get cancer just from eating them. Cancer is caused by many different factors, such as one's genes, environment, lifestyle and eating habits. As long as one has a balanced diet, he doesn't need to avoid cancercausing foods entirely.

1題完成句子；2～3題簡略回答問題；4題找出并寫下全文的主題句；5題將文中畫線句子譯成漢語。

【1】The salted fish ________ lots of salt, which is delicious and has a salty flavor.

【2】What can be helpful to you if you eat the salted fish?

_______________________________

【3】How many factors that may cause cancer are mentioned in this passage?

_________________________________

【4】_______________________________

【5】_______________________________

The dragon is a【2】(power)animal in Chinese culture. We Chinese people call 【3】(we)the “descendants(傳人) of the dragon”. People celebrate the Dragon Head Raising Day with many 【4】(custom).

On the day in ancient times, people 【5】(put) ashes(灰) in the kitchen. This was to “l(fā)ead 【6】dragon into the house”. People believed that with the help of the dragon, they could have a good harvest in a 【7】. Also, people ate delicious food that day. The food was 【8】(usual)named after dragons.

It is also said that a haircut d【9】 the first lunar month may bring bad luck to the uncles of the family—mainly mother's brothers. 【10】 many people have their hair cut on the Dragon Head Raising Day.

（1）從東西半球看，我國位于________半球，從南北半球看，我國位于________半球。

（2）我國少數(shù)民族中，人口最多的少數(shù)民族是_________。

（3）目前我國人口最多的省份是_________省。

（4）四大盆地中，位于我國第一階梯的盆地是___________。

（5）我國最大的咸水湖是__________，位于________省境內。

（6）_____________ 是經(jīng)濟發(fā)展的“先行官”。

（7）從_________至________的鐵路稱為蘭新線。

A.山區(qū)風景秀麗，開發(fā)生態(tài)旅游B.砍伐與撫育更新相結合，大力發(fā)展林業(yè)

C.大力發(fā)展木材加工業(yè)，以滿足市場需要D.山區(qū)急流水能豐富，積極建設小水電站

A.人口基數(shù)太大B.青少年比重太低

C.人口素質下降D.城鎮(zhèn)人口比重過高

A.黃河B.長江C.珠江D.黑龍江

A.西部地區(qū)氣候溫暖濕潤B.西部地區(qū)河流密布，水資源豐富

C.東部地區(qū)地形崎嶇，以高原、山地為主D.平原、丘陵主要分布在東部地區(qū)，土壤肥沃

【1】長江上游和黃河中上游河流的共同特征是（ ）

A.流量大B.含沙量大C.有結冰期D.水能資源豐富

【2】下列敘述，屬于長江和黃河兩條大河相同點的是（ ）

A.都發(fā)源于青藏高原上B.都是由西向東流，最后注入東海

C.都流經(jīng)亞熱帶濕潤地區(qū)D.都流經(jīng)黃土高原地區(qū)

A. 地球表面由六大板塊拼合而成

B. 各大板塊的位置固定不變

C. 六大板塊內部地殼活動比較頻繁

D. 世界的火山、地震都位于六大板塊交界地帶

A.黑河——騰沖一線B.秦嶺淮河一線

C.漠河——騰沖一線D.大興安嶺-太行山-巫山-雪峰山