题目内容

20.He hurried to the station onlyto find(find )that the train had left.

分析 他匆忙赶到火车站,却发现火车已经离开了.

解答 答案是to find.考查词组only to do sth.表示结果却是…句意是"他匆忙赶到火车站,却发现火车已经离开了."所以only后面接不定式to find.故答案是to find.

点评 本题考查用所给单词的适当形式填空.首先要根据语境明确句意,然后再根据相关语法对所给单词在形式上做出正确的变动.

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11.Global financial big dogs are no match for China's"Da Ma",or housewives,who have crowded into gold stores across China,buying up 300 tons of gold over the past two weeks.No wonder gold prices have steadied after taking a dive.
   During the May Day holiday,gold stores were crowded with mostly female customers.Most of them are middle-aged"Chinese housewives".This group of buyers has risen to fame recently.They are big spenders and are desperate to get their hands on a bargain."I bought some gold jewelry and kept them as a gift for my son when he gets married,"said a buyer from Shanghai.
The gold business is skyrocketing."Our sales are growing by the day.Yesterday we sold more than ten million yuan of gold products,"a gold store salesperson said.The gold rush in China started about two weeks ago thanks to a decline in global gold prices.Media reports suggest that Chinese housewives have spent about 100 billion yuan,or about 16 billion US dollars,purchasing 300 tons of gold since mid-April.That has helped support gold prices.
"Gold prices depressed since the middle of last month but have risen gradually.That is mainly due to the strong demand from Asian markets,"said foreign trader Zhang Chen from Industrial & Commercial Bank of China."Some people even joked that Chinese housewives have beaten Wall Street analysts."For Chinese people,with limited investment options,the only thing better than buying gold is buying gold at discount prices.
71.Why have the gold prices risen gradually after taking a dive?D
A.Because Asian markets have a strong demand for gold which leads to the rising of its prices.
B.Because Chinese housewives are always desperate to buy as much gold as they need.
C.Because it is just a kind of natural economic phenomenon.
D.Because Chinese housewives made the prices rise again.
72.What does the author indicate in the underlined sentence of the last paragraph?
C   
A.Wall Street analysts can't match with Chinese housewives.
B.Chinese housewives are now richer than Wall Street analysts.
C.Chinese housewives have spent even more money on gold than Wall Street analysts.
D.Chinese housewives have bought even much more gold than Wall Street analysts expected.
73.What can we infer about the gold rush in China from the passage?D
A.Chinese housewives are most willing to spend money in buying gold.
B.China's"Da Ma"crowded into stores to get gold as the best gifts for sons when they get married.
C.China's"Da Ma"led to the decline in global gold prices.
D.China's"Da Ma"become the largest gold buyers due to a decline in global gold
prices.
74.The whole passage mainly developedC.
A.by giving examples     B.by contrast     C.by quotation     D.by time order
75.The author's description about the passage isC.
A.reasonable            B.subjective     C.objective        D.negative.
8.One Monday morning,Paul and his classmates were in science laboratory for their practical chemistry lesson.The students were going to work in pairs to do an experiment.Before they began,the teacher gave them this description of the different stages of the experiment.
Stage 1:Prepare the equipment:a test tube,a crucible,a Bunsen burner and tongs.
Stage 2:Weigh 5grams of baking soda (sodium bicarbonate) and put it in a crucible.
Stage 3:Heat 10ml of hydrochloric acid (盐酸) in a test tube.
Stage 4:Pour the warm acid onto the baking soda and continue to heat the mixture.
Result:The acid reacts with the bicarbonate(碳酸氢盐)to form water,carbon dioxide gas and salt.The hotter the mixture,the quicker the reaction.Continue to heat the mixture until the water evaporates,leaving the salt in the crucible.
Paul and his partner followed the instructions and set up their equipment.Paul went to the cupboard to get a bottle of hydrochloric acid.He found that there was only one bottle in the cupboard so he took that.There was no label on the bottle and Paul didn't check with the teacher if it was the right solution.
He measured the liquid and poured it into a test tube.Using tongs to hold the test tube,he heated it over the Bunsen burner.That's when things started to go wrong.The liquid in the test tube was not hydrochloric acid.When it was heated,it formed a thick cloud of white gas.Soon the room was full of this strong smelling white gas.
All the students started coughing and their eyes hurt.The teacher immediately opened the windows and ordered the students to leave the laboratory at once.She realized that the liquid was a crylamide (丙烯酰胺) and that it is poisonous.
Fortunately,nobody was injured in the incident.However,it taught the students and the teacher a good lesson.

43.What lesson did the incident teach the students and the teacher?A
A.Never have a bottle without a label in the chemistry lab!
B.Obey your teacher's instructions in the Chemistry lab.
C.Acrylamide can't take the place of hydrochloric acid.
D.Finding something unusual happened,you have to leave the laboratory at once.
44.What substance were the students making in the experiment?C
A.Water              B.Carbon dioxide gas         
C.Salt               D.Poisonous gas
45.Why did Paul make the mistake?D
A.He went to the cupboard to get the bottle by himself.
B.He found that there was only one bottle in the cupboard so he took that.
C.There was no label on the bottle.
D.Paul didn't check with the teacher that it was the right solution.
46.Why did the teacher send the students out of the classroom?C
A.Because the room was full of this strong smelling white gas.
B.Because all the students started coughing and their eyes hurt.
C.Because the liquid was a crylamide and that it is poisonous.
D.Because someone was injured in the incident.

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