1、Unit 4 Period III Using Language一、1.His life goal is to make contributions to ( help) the poor in society.2.If you make up your mind to do so, then you should realize it may have serious _ (consequence).3.Father is opposed to ( spend) much time watching because its a waste of time.4.A terrible accid
2、ent happened last night, (result) in heavy losses.5.The elephant is the largest land animal in (exist) today.6.Many people (继续）throwing rubbish even if we call on everyone to (保护环境）every day. On the whole I cant put up with this kind of behavior. (代表）those who take good care of the environment, I wo
3、uld like to say (只要）we can behave ourselves, we can create a beautiful environment. Our efforts will (有影响).二、 Arctic ice has reformed rapidly this winter after a record summer low, but it still covers less of the Arctic Ocean than it did decades ago. March is the month when Arctic sea ice traditiona
4、lly hits its highest extent after the Northern Hemisphere winter and Antarctic sea ice reaches its lowest extent. Arctic sea ice reached a record low this past summer, with 23 percent less sea ice cover than the previous record low and 39 percent less than the average amount that has previously span
5、ned the Arctic Ocean in the summer months. The area of ocean covered by sea ice isnt the only factor in the “health” of the Arctic ice. Arctic sea ice comes in two types: older, thicker perennial ice that has survived at least one summer melt season and younger, thinner seasonal ice that forms in wi
6、nter and melts again in summer. Seasonal ice melts more easily because its thin and salty, and so its easily affected by winds and currents. Lower temperatures in parts of the Arctic increased the amount of thin, seasonal ice that formed this winter. So while Arctic sea ice was dominated by perennia
7、l ice in the past decades, its mostly now younger, newly-formed ice. But because the majority of the ice is young and thin, it would be more susceptible to summer melting. Some of the seasonal ice could become perennial sea ice if summer conditions are cooler than normal. But, one cold summer isnt g
8、oing to do it and one cold winter isnt going to do it. Numerous years of lower temperatures would be needed to restore the Arctic sea ice to where it was in the 1980s, and that isnt likely to happen with the increasing levels of heat-trapping greenhouse gases in the atmosphere.1.What might excite th
9、e scientists concerned with Arctic ice?A.Perennial sea ice was increasing rapidly.B.Arctic ice was disappearing for the time being.C.The area for the Arctic ice was increasing.D.Arctic sea ice hits its lowest extent in March.2.According to the text, what mostly affects the health of the Arctic ice?A
10、.The area of the Arctic sea ice.B.The perennial ice.C.The seasonal sea ice.D.The Antarctic sea ice.3.According to the text, we know that the perennial sea ice_.A.is not only thick but also saltyB.mainly stays on the islands in the ArcticC.can be made out of the seasonal iceD.covers less sea in winte
11、r than in summer4.The underlined word “susceptible” in the fourth paragraph means_.A.easily influencedB.difficultly movedC.easily brokenD.easily impressed三、请根据下面这幅漫画写一篇100词左右的英语短文。要求：1. 请阐述温室效应所产生的原因；2. 简述其后果，应尽可能涵盖图中所有信息 (至少谈及两个方面）；3. 我们该怎么办？_答案以及解析一、1.答案：helping解析：【解题思路】考査非谓语动词。句意：他的人生目标是为帮助社会上的穷人
12、作出贡献3 make contributions to中to为介词，后 接名词或动同-ing形式作宾语，因此填helping。2.答案：consequences解析：【解题思路】考査名同复数。句意：如果你决定这么做，那么你应该意识到这件事可能会产生严重的后果。 consequent是可数名词，其前没有冠词，应用名词复数。 have consequences意为产生后果03.答案：spending解析：【解题思路】考查非谓语动词。句意:爸爸反对花太多时间看电视，因为看电视浪费时间。be opposed to doing sth.反对做 某事，为固定搭配，to为介词，故空处填spending4.答
13、案：resulting解析：【解题思路】考査非谓语动词。根据句意可知，这里表示自然而然的结果,故用现在分词作结果状语。5.答案：existence解析：【解题思路】考査词形转换。句意：大象是陆地上现存 的最大的动物。in existence意为现存的，存在的。6.答案：Many people keep on/go on/continue(继续)throwing rubbish even if we call on everyone to protect the environment (保护环境）every day. On the whole I cant put up with this k
14、ind of behavior. On behalf of (代表) those who take good care of the environment, 1 would like to say as long as (只要）we can behave ourselves, we can create a beautiful environment. Our efforts will make a difference (有影响）.二、答案：1.C; 2.B; 3.C; 4.A解析：1.细节理解题。根据文章第一段和第四段可知,北极冰的面积在很快地增加,但是,增加的部分大多是季节性的冰,并不
15、是永久性的。另外,在3月份,北极冰常常是达到最高点而不是最低点。故答案选C项。2.细节判断题。根据文章第三段可知,冰是由季节性的冰和永久性的冰共同组成的,但是季节性的冰容易融化而永久性的冰是长久的,所以永久性的冰的面积的多少更能够决定北极冰的健康性。故答案选B项。3.细节判断题。选项A错在salty上,具有salty特点的是seasonal ice;选项B the perennial sea ice应该是待在海中而不是岛上的;根据文章最后一段,选项C所说的是正确的;选项D应该是冬天的冰的面积要比夏天的大而不是小。故答案选C项。4.词义猜测题。因为冰形成时间很短而且很薄,所以夏季容易融化。而另外
16、5个选项的词义不符合语境。故答案选A项。三、答案：These years global warming is becoming a serious problem, endangering peopled lives.Several factors contribute to the rise of the temperature. Firstly, a lot of greenhouse gases are produced by cars and factories; Secondly, people bum a lot of coal and wood for their life； T
17、hirdly, the loss of forests is another cause of global warming.Global warming will cause some harmful effects. Some islands will disappear because of rising sea levels, and thus people of certain countries will have to look for new places to live in. Extreme weather will also result from global warm
18、ing. If the temperature keeps rising, some animals and plants will disappear from the planet, thus destroying the ecosystem.Facing such a threat, we should join efforts to “cool” the earth. We can take the subway or bus to work instead of driving private cars to reduce greenhouse gases. All in all, we are supposed to remember its our responsibility to save our earth.
