It is unlikely that... 不可能…… 2) It + 不及物动词 + 从句
It seems/appears that... 似乎…… It happened that... 碰巧…… 3) It + be +过去分词+从句 It is said that... 据说……
It is known to all that... 众所周知…… It is reported that... 据报道……
It is believed that... 据信……; 人们相信…… It is suggested that... 有人建议…… It must be pointed out that... 必须指出…… It has been proved that... 已证明…….
如: It is believed that at least a score of buildings were damaged or destroyed. 据信, 至少有二十座楼房遭到破坏或彻底毁掉。
4) 用于It is important / natural / necessary / impossible that...句型中, 主语从句应使用虚拟语气, 谓语动词用\\“should + 动词原形\\”的形式, should有时有感情色彩。
The fourth period Speaking Speaking on page 31
What do you need if you travel to the moon? Sample:
S1: Let’s think about what we would need to protect our skin if we visited the Moon. S2: I’d take some skin cream. That works very well when we go to the sea. S3: Yes, but it’s going to be much too hot to put cream on your skin on the Moon. S4: What’s more you get direct heat from the sun. There are no clouds on the Moon to protect you.
S3: Oh dear, and I also have to carry oxygen around with me everywhere because there’s no oxygen on the Moon.
S2: Why don’t we carry the oxygen on our backs in a tank? S1: Good idea, but won’t that hurt our skin?
S4: I think it will. Why don’t we wear a spacesuit which has the possibility of protecting your skin and helping you carry the oxygen very easily?
S1: A very good idea. We also need some sunglasses as the sun will be as bad for our eyes as for our skin.
S3: That’s right. The helmet of the suit can have sunglasses you can use. S2: How will the suit protect our skin?
S4: It’s so hot there so I suggest we design suit that can supply cold water so the wearer feels cool and hot water to warm us if we feel cold. S2: Great! So I won’t need sun cream after all. That’s good!
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